[0,π]
[π/2, π]
[π/4,π]
[-π,π]
None of these
The value of cos -1 ( cos 5π/3 ) + sin -1 ( sin 5π/3 )
π/2
5π/3
10π/3
0
π2
Tan ( cos -1 x ) is equal to ___________.
The value of cot-1(-√3) is
π/6
-π/6
5π/6
-5π/6
1/x+ 1/y+1/z
xyz
xy+yz+zx
x/2
2x
3x
x
If Sin-1 x = π/5 for some x∈ [-1, 1] then the value of Cos-1 x is
3π/10
5π/10
7π/10
9π/10
