Mathematics
Functions
Previous Years Questions

## MCQ (More than One Correct Answer)

Let $$|M|$$ denote the determinant of a square matrix $$M$$. Let $$g:\left[0, \frac{\pi}{2}\right] \rightarrow \mathbb{R}$$ be the function defined by...
Let $$f(x) = \sin \left( {{\pi \over 6}\sin \left( {{\pi \over 2}\sin x} \right)} \right)$$ for all $$x \in R$$ and g(x) = $${{\pi \over 2}\sin x}... For every pair of continuous function f, g : [0, 1]$$\to$$R such that max {f(x) : x$$\in$$[0, 1]} = max {g(x) : x$$\in$$[0, 1]}. The correct sta... Let$$f:\left( { - {\pi \over 2},{\pi \over 2}} \right) \to R$$be given by$$f(x) = {[\log (\sec x + \tan x)]^3}$$. Then, Let$$f:( - 1,1) \to R$$be such that$$f(\cos 4\theta ) = {2 \over {2 - {{\sec }^2}\theta }}$$for$$\theta \in \left( {0,{\pi \over 4}} \right) \c...
Let $$f:(0,1) \to R$$ be defined by $$f(x) = {{b - x} \over {1 - bx}}$$, where be is a constant such that $$0 ## Numerical Let the function f : [0, 1]$$ \to $$R be defined by$$f(x) = {{{4^x}} \over {{4^x} + 2}}$$Then the value of$$f\left( {{1 \over {40}}} \right) + f\le...
Let the function $$f:(0,\pi ) \to R$$ be defined by $$f(\theta ) = {(\sin \theta + \cos \theta )^2} + {(\sin \theta - \cos \theta )^4}$$Suppose the ...
Let f : [0, 2] $$\to$$ R be the function defined by$$f(x) = (3 - \sin (2\pi x))\sin \left( {\pi x - {\pi \over 4}} \right) - \sin \left( {3\pi x + ... For a polynomial g(x) with real coefficients, let mg denote the number of distinct real roots of g(x). Suppose S is the set of polynomials with real c... Let X be a set with exactly 5 elements and Y be a set with exactly 7 elements. If$$\alpha $$is the number of one-one functions from X to Y and$$\be...
If the function $$f(x) = {x^3} + {e^{x/2}}$$ and $$g(x) = {f^{ - 1}}(x)$$, then the value of $$g'(1)$$ is _________.

If the function f : R $$\to$$ R is defined by f(x) = |x| (x $$-$$ sin x), then which of the following statements is TRUE?
Let $${E_1} = \left\{ {x \in R:x \ne 1\,and\,{x \over {x - 1}} > 0} \right\}$$ and $${E_2} = \left\{ \matrix{ x \in {E_1}:{\sin ^{ - 1}}\left( {{... Let S = {1, 2, 3, .........., 9}. For k = 1, 2, .........., 5, let Nk be the number of subsets of S, each containing five elements out of which exactl... Let f1 : R$$ \to $$R, f2 : [0,$$\infty $$)$$ \to $$R, f3 : R$$ \to $$R, and f4 : R$$ \to $$[0,$$\infty $$) be defined by$${f_1}\left( x \ri...
The function $$f:[0,3] \to [1,29]$$, defined by $$f(x) = 2{x^3} - 15{x^2} + 36x + 1$$, is
Let f(x) = x2 and g(x) = sin x for all x $$\in$$ R. Then the set of all x satisfying $$(f \circ g \circ g \circ f)(x) = (g \circ g \circ f)(x)$$, wher...
Match the statements given in Column I with the intervals/union of intervals given in Column II : ...
EXAM MAP
Joint Entrance Examination