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BITSAT Application of Derivatives PYQs with Solutions

67 previous year questions from Application of Derivatives (BITSAT Mathematics) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

67 questionsMathematics2009–2024Answers + solutions

About Application of Derivatives PYQs

Application of Derivatives has 67 previous year questions in the Quantrex Academy BITSAT Mathematics bank. The 67 questions in this list come from BITSAT (67), spanning 2009 to 2024. Each question opens on its own page with the options, the correct answer and the worked solution where available.

Questions by year (this list)

  • 2024: 7
  • 2023: 5
  • 2022: 2
  • 2021: 4
  • 2020: 4
  • 2019: 4
  • 2018: 2
  • 2017: 6
  • 2016: 5
  • 2015: 7
  • 2014: 2
  • 2013: 3

Application of Derivatives questions with solutions

1

The maximum area of rectangle inscribed in a circle of diameter R is

BITSAT 2024 Solution
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2

Consider the function f(x)=(|x-1|)/(x^2) , then f(x) is

BITSAT 2024 Solution
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3

The maximum volume (in cu. units) of the cylinder which can be inscribed in a sphere of radius 12 units is

BITSAT 2024 Solution
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4

If the angle made by the tangent at the point (x_0, y_0) on the curve x=12(t+ t t), y=12(1+ t)^2, 0 t (π)/(2) , with the positive x -axis is (π)/(3) , then y_0 is equal to

BITSAT 2024 Solution
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5

The altitude of a cone is 20 cm and its semivertical angle is 30^ ^ ∘ . If the semi-vertical angle is increasing at the rate of 2^ ^ ∘ per second, then the radius of the base is

BITSAT 2024 Solution
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6

The point of inflexion for the curve y=(x-a)^n , where n is odd integer and n ≥ 3 is

BITSAT 2024 Solution
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7

The population p(t) at time t of a certain mouse species satisfies the differential equation (d p(t))/(d t)=0.5 p(t)-450 . If p(0)=850 , then the time at which the population

BITSAT 2024 Solution
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8

The function f(x)= (1+x)-(2 x)/(2+x) is increasing on

BITSAT 2023 Solution
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9

If f(x)= x, g(x)= 2 x, h(x)= 3 x and I(x)= x , then which of the following option is correct?

BITSAT 2023 Solution
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10

The interval in which the function f(x)=(4 x^2+1)/(x) is decreasing is :

BITSAT 2023 Solution
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11

The curve given by x+y=e^ x y has a tangent parallel to the Y-axis at the point

BITSAT 2023 Solution
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12

The function f(x)= ^ -1 ( x+ x) is an increasing function in

BITSAT 2023 Solution
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13

A running track of 440 ft is to be laid out enclosing a football field, the shape of which is a rectangle with a semi-circle at each end. If the area of the rectangular portion is

BITSAT 2022 Solution
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14

A spherical balloon is filled with 4500 π cubic meters of helium gas. If a leak in the balloon causes the gas to escape at the rate of 72 π cubic meters per minute then the rate

BITSAT 2022 Solution
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15

The points at which the tangent passes through the origin for the curve y=4 x^ 3 -2 x^ 5 are

BITSAT 2021 Solution
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16

If the radius of a sphere is measured as 9 cm with an error of 0.03 cm , then find the approximating error in calculating its volume.

BITSAT 2021 Solution
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17

f(x)= ( e^ 2 x -1 e^ 2 x +1 )is

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18

If the tangent at P(1,1) on y^ 2 =x(2-x)^ 2 meets the curve again at Q , then Q is

BITSAT 2021 Solution
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19

Consider the function f(x)=|x-1| /x^ 2 , then f(x) is

BITSAT 2020 Solution
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20

Let x+y=3- 4 θ and x-y=4 2 θ then the greatest of x y is

BITSAT 2020 Solution
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21

The equation of the tangent to the curve y=b e^ -x/a at the point where it crosses the y -axis is

BITSAT 2020 Solution
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22

Suppose that f(0)=-3 and f^ (x) ≤ 5 for all values of x Then, the largest value which f(2) can attain is

BITSAT 2020 Solution
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23

If f and g are differentiable function in [0, 1] satisfying f(0) = 2 = g (1) , g (0) = 0 and f(1) = 6 , then for some c ∈ (0, 1)

BITSAT 2019 Solution
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24

The least value of the function f ( x ) = ∫ _ 0 ^ x (3sinx + 4cosx)dx in the interval [(5π)/(4), (4π)/(3)] is

BITSAT 2019 Solution
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25

The difference of maximum and minimum values of f ( x ) = x^ 2 e^ - x is

BITSAT 2019 Solution
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26

The distance between the origin and the normal to curve y = e^ 2x + x^ 2 at x = 0 is

BITSAT 2019 Solution
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27

An inverted conical flask is being filled with water at the rate of 3 cm ^ 3 ^ -1 . The height of the flask is 10 cm and the radius of the base is 5 cm. How fast is the water

BITSAT 2018 Solution
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28

For which interval the given function f(x) = - 2x^ 3 - 9x^ 2 - 12x + 1 is decreasing?

BITSAT 2018 Solution
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29

Let f(x) = - 2x^ 3 + 21x^ 2 - 60x + 41 , then

BITSAT 2017 Solution
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30

Rolle's theorem is not applicable for the function f ( x ) = | x | in the interval [ - 1, 1 ] because

BITSAT 2017 Solution
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31

If the curve y = a^ x and y = b^ x intersect at angle α , then tanα is equal to

BITSAT 2017 Solution
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32

The maximum value of f ( x ) = x + sin2x, x ∈ [ 0, 2π ] is

BITSAT 2017 Solution
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33

Line joining the points (0,3) and ( 5, - 2 ) is a tangent to the curve y = (ax)/(1 + x) , then

BITSAT 2017 Solution
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34

The shortest distance between the parabolas y^ 2 = 4x and y^ 2 = 2x - 6 is

BITSAT 2017 Solution
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35

The set of all values of a for which the function f(x)=(a^ 2 -3 a+2)( ^ 2 x / 4- ^ 2 x / 4)+(a-1) x+ 1 does not possess critical points is

BITSAT 2016 Solution
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36

What is the x -coordinate of the point on the curve f(x)= x (7 x-6), where the tangent is parallel to x -axis?

BITSAT 2016 Solution
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37

Consider the following statements in respect of the function f(x)=x^ 3 -1, x ∈[-1,1] I. f(x) is increasing in [-1,1] II. f(x) has no root in (-1,1). Which of the statements given

BITSAT 2016 Solution
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38

At an extreme point of a function f(x), the tangent to the curve is

BITSAT 2016 Solution
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39

The curve y=x e^ x has minimum value equal to

BITSAT 2016 Solution
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40

The line which is parallel to X-axis and crosses the curve y= x at an angle of 45^ ^ ∘ , is

BITSAT 2015 Solution
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41

The number of real roots of the equation e ^ (x-1) +x-2=0 is

BITSAT 2015 Solution
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42

Tangents are drawn from the origin to the curve y= x. Their points of contact lie on

BITSAT 2015 Solution
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43

The slope of the tangent to the curve y=e^ x cos x is minimum at x=α, 0 ≤ a ≤ 2 π , then the value of α is

BITSAT 2015 Solution
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44

The function f(x)= x 2 + 2 x has a local minimum at

BITSAT 2015 Solution
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45

If \(0< x< (π)/(2) \), then

BITSAT 2015 Solution
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46

Let f(x) be a polynomial of degree three satisfying f(0)=-1 and f(1)=0. Also, 0 is a stationary point of f(x) If f(x) does not have an extremum at x=0 , then the value of ∫ f(x)

BITSAT 2015 Solution
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47

The interval in which the function 2 ^ 3 +15 increases less rapidly than the function 9 x^ 2 -12 x, is -

BITSAT 2014 Solution
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48

The fuel charges for running a train are proportional to the square of the speed generated in miles per hour and costs ' 48 per hour at 16 miles per hour. The most economical

BITSAT 2014 Solution
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49

The equation of all lines having slope 2 which are tangent to the curve y=(1)/(x-3), x ≠ 3, is

BITSAT 2013 Solution
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50

The function f(x)=(x(x-2))^ 2 is increasing in the set

BITSAT 2013 Solution
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51

If a^ 2 x^ 4 +b^ 2 y^ 4 =c^ 4 , then the maximum value of xy is

BITSAT 2013 Solution
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52

If f(x)=x^ α x and f(0)=0, then the value of α for which Rolle's theorem can be applied in [0,1] is

BITSAT 2012 Solution
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53

If f(x)= ^ 2 -1 ^ 2 +1 ^ 3 -3 x+5 is a decreasing function of x in R , then the set of possible values of a (independent of x ) is

BITSAT 2012 Solution
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54

If the normal to the curve y=f(x) at the point (3,4) makes an angle 3 π / 4 with the positive x -axis, then ^ (3)=

BITSAT 2012 Solution
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55

The function \(f(x)= x-k x-c\), where \(k\) and \(c\) are constants, decreases always when

BITSAT 2011 Solution
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56

The minimum value of \(f(x)= ^4 x+ ^4 x\) in the interval \( (0, (π)/(2) ) is

BITSAT 2011 Solution
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57

The curve \(y-e^ x y +x=0\) has a vertical tangent at

BITSAT 2011 Solution
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58

The function \( f(x)= 2 x^ 3-3 x^ 2-12 x+ 4\), has

BITSAT 2011 Solution
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59

Let \(f(x)= \(\ array l a x²+1, x > 1 x+a, x ≤ 1 array .\). Then \(f(x)\) is derivable at \(x=1\), if

BITSAT 2010 Solution
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60

If a circular plate is heated uniformly, its area expands \(3 c\) times as fast as its radius, then the value of \(c\) when the radius is 6 units, is

BITSAT 2010 Solution
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61

The function \( f(x)= x- 4 x \) is strictly decreasing on

BITSAT 2010 Solution
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62

If a flagstaff of 6 metres high placed on the top of a tower throws a shadow of \(2 3 \) metres along the ground, then the angle (in degrees) that the sun makes with the ground is

BITSAT 2010 Solution
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63

If \(M(α)=[ array ccc α & - α & 0 α & α & 0 0 & 0 & 1 array ]\); \(M(β)=[ array ccc β & 0 & β 0 & 1 & 0 - β & 0 & β array ]\) then \([M(α) M(β)]^ -1 \) is equal to -

BITSAT 2009 Solution
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64

The set of points of discontinuity of the function \(1 / | x| \) is -

BITSAT 2009 Solution
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65

The minimum value of the function \(y=x⁴-2 x²+1\) in the interval \( [(1)/(2), 2]\) is

BITSAT 2009 Solution
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66

The value of \(a\) in order that \(f(x)= x- x-a x+b\) decreases for all real values is given by

BITSAT 2009 Solution
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67

A person standing on the bank of a river observes that the angle subtended by a tree on the opposite bank is \(60^ ^ ∘ \). when he retreats 20 feet from the bank, he finds the

BITSAT 2009 Solution
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