Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NDA2016MathematicsDifferentiationActual

Let f : R R be a function such that f(x)=x^3+x^2 f^ (1)+x f f^ (2)+f^ (3) for x R Consider the following: 1. f (2)= f (1)- f (0) 2. f^ (2)-2 f^ (1)=12 Which of the above is/are correct?

Options

  1. A1 only
  2. B2 only
  3. CBoth 1 and 2
  4. DNeither 1 nor 2

Correct answer

C. Both 1 and 2

Step-by-step solution

1. aligned & f(1)-f(0)=4-6 & =-2 & f(2)=8-20+4+6=-2 & Hence f(2)=f(1)-f(0) aligned Statement (1) is correct. aligned & 2. f^ (2)-2 f^ (1)=2-2(-5) & f^ (2)-2 f ^ (1)=12 aligned Statement (2) is correct.

Practice Differentiation on Quantrex Academy →

More from Differentiation

Passage: Let (e^y )^x-y=0 , where y is a function of x whose domain is (0,10] . Question: What is dy dx equal to, given that y=y₀ when x=1 ? 2026If [4] y =x+ x^2+4 , then what is x^2+4 , dy dx equal to ? 2026Passage: Let (e^y )^x-y=0 , where y is a function of x whose domain is (0,10] . Question: What is dy dx equal to ? 2026For the following two (02) items: Consider the function f(x) = cases 4(5^x), & x What is f'(-1) equal to? 2025Consider the following for the two (02) items that follow: Let x = - and y = ^4 - ^4 . What is ( dy dx )^2 equal to? 2025Consider the following for the two (02) items that follow: Let (x+y)^ p+q = x^p y^q , where p , q are positive integers. The derivative of y with respect to x 2025Consider the following for the two (02) items that follow: Let y = ⁻¹ (x - 4x^3 27 ) . What is dy dx equal to? 2025For the following three (03) items: Let y = f(x) = x ⁻¹ x 1 - x^2 + 1 - x^2 . If x = , then what is dy dx equal to? 2025 Full Differentiation list All NDA PYQs