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(x) = x2-5x+3, then f(1) =
3
1
0
-1
Which of the following functions are identical?
f(x) = x/x and ∅ (x) = 1
f(x) = logx2 and ∅ (x) = 2 log x
f(x) = 1 and ∅ (x) = sin2 x + cos2 x
f(x) = x and ∅(x) = (√x)2
Given f: N→N, If f={(1,3) (2,5) (3,7).........} then f(x)=
2x + 1
2x - 1
x + 1
x - 1
The period of cos(x)2 is
4π2
π2/4
The period of f(x) = sin4x + cos4x is
4π
The inverse function of logex is
10x
10-x
ex
e-x
f(a2)
f(a)
f(a+1)
The two linear functions which map [-1, 1] on [0,2] are
y = x + 1, y = 1 - x
y = x - 1, -1 - x
y = x, y = -x
y = 1 + 1/x
