1/x+ 1/y+1/z
xyz
xy+yz+zx
None of these
Sin-1 (-x)=
Cos x
-Sin-1 x
Sin-1 x
If cos-1 1/2 =A, then cos A = __________.
0
1/2
1
2
Sin (Sec-1 25/7) =
24/25
28/25
26/25
22/25
Sin-1 4/5 + 2 tan-1 1/3 =
π/3
π/4
π/2
If sin-1 x = y then
o ≤ y ≤ π
-π/2 ≤ y ≤ π/2
π/2 ≤ y ≤ π/2
Sin-1 x + sin-1 2x = π/3, then x is
tan-1√3 - cot-1 (-√3) is equal to
π
-π/2
2√3
-3π/4
If cos-1 x + cos-1 y = π what is the value of sin-1x + sin-1y ?
2π
