2
4
6
8
1
0
3
-3
The value of sin [ cot -1 ( cot 17π/3 ) ] is
- √3/2
√3/2
1/√2
None of these
Cos (tan-1x) =
-1/√(1 + x2)
1/√(1 + x2)
1/√(1 - x2)
-1/√(1 - x2)
The value of tan -1 1/2 + tan -1 1/3 is _______.
π/4
π/6
π/3
(cos1,1)
(-1, cos1)
(sin1, 1)
(cos1, sin1)
[0,π]
[π/2, π]
[π/4,π]
[-π,π]
x/2
2x
3x
x
cos [ tan -1 {sin (cot-1 x )} ] is equal to _________.
is equal to