The least and the greatest values of `(sin^(-1)x)^3+(cos^(-1)x)^3`
are
`(-pi)/2,pi/2`
(b) `(-pi^3)/8,(pi^3)/8`
`(pi^3)/(32),(7pi^3)/8`
(d) none of these
A. `-(pi)/(2),(pi)/(2)`
B. `-(pi^(3))/(8),(pi^(3))/(8)`
C. `(pi^(3))/(32),(7 pi^(3))/(8)`
D. none of these
