The period of f(x) = sin4x + cos4x is
π
2π
π/2
4π
If A = {4,5,7} B = { 2,4} and C = {2,3,7} then (A-B) x(A-C) =
{(5,4) (5,5) (7,4) (7,5)}
{(5,5) (5,6) (7,5) (7,6)}
{(4,5) (5,5) (7,3) (7,7)}
None
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
The period of f(x) = sin 4x + tan 2x is
None of these
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
If f1(x) and f2 (x) are defined on domain D1 and D2, then the domain of f1(x) + f2 (x) is
D1 ∪ D2
D1 ∩ D2
D1 - D2
D2 - D1
If f: R→ R, the range of the function f(x) = x2/x2+1, is
R-
R+
R x R
The inverse function of logex is
10x
10-x
ex
e-x
Cot θ
- Cot θ
-tan θ
- sin θ
