π/2
-π
π
-π/2
If u = xy, then ∂u/∂x =
yxy-1
u log x
u log y
xyx-1
Sin-1 (cos (sin-1x )) + cos -1 (sin (cos -1 x )) is equal to ________.
π/4
3π/4
0
x/2
2x
3x
x
[0,π]
[π/2, π]
[π/4,π]
[-π,π]
π2
None of these
-1
1
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