The two linear functions which map [-1, 1] on [0,2] are
y = x + 1, y = 1 - x
y = x - 1, -1 - x
y = 1 + 1/x
y = x, y = -x
The period of f(x) = sin 4x + tan 2x is
2π
π
π/2
None of these
The domain of sin-1 [log3(x/3)] is
(1,9)
(-1,9)
(-9,1)
(-9,-1)
If f: R→ R, the range of the function f(x) = x2/x2+1, is
R-
R+
R
R x R
Cot θ
- Cot θ
-tan θ
- sin θ
The domain of the function f(x) = log |4 - x2| is
(-2, 2)
R - {2, -2}
{-2, 2}
Let X = {2,3} and Y = {1,3,5}. How many different functions are there from X into Y?
3
9
16
7
The period of cos(x)2 is
4π2
π2/4
The inverse function of logex is
10x
10-x
ex
e-x
If f(x) = x2 - 1/x2, f(x) =
-f(1/x)
f(1/x)
-f(x)
f(x2)
