-1
1
0
None of these
π/2
-π
π
-π/2
1/x+ 1/y+1/z
xyz
xy+yz+zx
Sin-1 (-x)=
Cos x
-Sin-1 x
Sin-1 x
[0,π]
[π/2, π]
[π/4,π]
[-π,π]
Sin (Sec-1 25/7) =
24/25
28/25
26/25
22/25
The value of cos -1 ( cos 5π/3 ) + sin -1 ( sin 5π/3 )
5π/3
10π/3
Sin-1 (cos (sin-1x )) + cos -1 (sin (cos -1 x )) is equal to ________.
π/4
3π/4
If u = xy, then ∂u/∂x =
yxy-1
u log x
u log y
xyx-1
sin-1(sin5π/6)=_____________
5π/6
2π/6
3π/6
π/6
