Inverse Functions

IMPORTANT

Inverse Functions: Overview

This Topic covers sub-topics such as Finding Inverse of a Function, Invertible Function, Inverse of a Function, Properties of Inverse of a Function, Graph of Inverse of a Function and, A Function is Inverse of Itself

Important Questions on Inverse Functions

MEDIUM
IMPORTANT

If  f: RR  be a function defined as   f( x )=4x+3,where{ y  R:y=4x+3 for some   xN }. Then, which of the following define f

HARD
IMPORTANT

Let fx=x-1+xxx1,3, then f-1x is

Here, · is GIF and · is the fractional part function.

MEDIUM
IMPORTANT

Let f:2,41,3 be a function defined by fx=x2+x2, (where, · is the fractional part function), then f-1x is

MEDIUM
IMPORTANT

If y=x2+2x+1x2+2x+7, then inverse function x is defined only when

EASY
IMPORTANT

Let f:RR be defined by fx=x+5, if x0x2+5, if x>0. Let f-1 denotes the inverse of the function f then f-1 is given by 

HARD
IMPORTANT

If fx=2x-3π5+43x+cosx and g is the inverse of fx, then g'2π is equal to

HARD
IMPORTANT

The function fx=ax+bcx+d, whers a,b,c,d are not zero real number. If f19=19, f97=97 and ffx=x R & x-dc. The number that is not in the range of fx is

HARD
IMPORTANT

If f:[-1,0)(-,-1] and fx=xx, where [.] represents greatest integer function. Then f-1x is equal to

MEDIUM
IMPORTANT

Let a real valued function satisfies, 10fx+lnfx=x3 for all positive x. Number of solutions of fx=f-1x, xA, where A is the set of values of x for which fx is invertible, is

EASY
IMPORTANT

Let A=R-3 and B=R-1, then f: AB is defined by fx=x-2x-3. What is the value of f-112?

EASY
IMPORTANT

fx=2x3+1 then what is f-1x options

MEDIUM
IMPORTANT

Number of real numbers x satisfying equation x3-8=16x+13 are

HARD
IMPORTANT

If f:RR, fx=x3+3, and g:RR, gx=2x+1, then f-1og-123 equals

MEDIUM
IMPORTANT

The inverse function of the function f(x)=9x2+12x+16 is

EASY
IMPORTANT

Let a>1 be a real number and fx=logax2 for x>0 . If f-1 is the inverse function of f, and b and c are real numbers, then f-1b+c is equal to

EASY
IMPORTANT

Let S={a,b,c} and T={1,2,3}. Find f-1 of the following function f={(a,2),(b,1),(c,1)} f from S to T, if it exists.

EASY
IMPORTANT

If  f : R  R, f(x)=cos (x + 2)  , does f-1 exist?

EASY
IMPORTANT

State with reason whether the function h:{2,3,4,5}7,9,11,13 with h=2,7,3,9,4,11,5,13  have inverse.

EASY
IMPORTANT

Let f:XY be an invertible function. Show that the inverse of f-1 is f, i.e., (f-1)-1 =f.

MEDIUM
IMPORTANT

Write the properties of inverse function?