Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Manipal MET2015MathematicsFunctions

The range of the function f(x)= ₅ (25-x^2 ) is

Options

  1. A[0,5]
  2. B[0,2)
  3. C(0,2)
  4. DNone of these

Correct answer

D. None of these

Step-by-step solution

Clearly, f(x) is defined, if 25-x^2 0 -5 x 5 Let y= ₅ (25-x^2 ) , then 5^y=25-x^2 array ll & x^2=25-5^y & x= 25-5^y array For x to be real, we must have 25-5^y 0 array ll & 5^y 25 & y 2 array Also, y=f(x) - as x 5 . Hence, range (f)=(- , 2]

Practice Functions on Quantrex Academy →

More from Functions

If f : R A , defined by f ( x )= x + 3 x -1 , is an onto function then A = 2025Let g(x)=1+x-[x] and f(x)= cases -1, & x 0 cases ([x] ) denotes the greatest integer less than or equal to (x ). Then for all x , f ( g ( x ))= 2025The domain of the real valued function f(x)= 3 4-x^2 + ₁₀ (x^3-x ) is 2025A real valued function f: A B defined by f(x)= 4-x^2 4+x^2 x A is a bijection. If -4 A then A B= 2025Let [ x ] represent the greatest integer less than or equal to x , x = x -[ x ] , 2 =1.414 and 3 =1.732 . If f(x)= x+ [ x 1+x^2 ] is a real valued function, then f ( 2 )+ f (- 3 )= 2025If the range of the function f(x)=-3 x-3 is 3,-6,-9,-18 , then which one of the following is not in the domain of f ? 2025The domain of the function f(x)= _e ( 1 x^2-4 x+4 ) + ⁻¹ (x^2-2 ) is 2025Consider the following statements Statement-I : A function f : A B is said to be one-one if and only if f(x) f(y) x y Statement-II : A relation f: A B is said to be a function if x 2025 Full Functions list All Manipal MET PYQs