`d/(dx)(cos^(-1)sqrt(cosx))` is equal to`` (a)`1/2sqrt(1+s e cx)` (b) `sqrt(1+secx)` (c)`-1/2sqrt(1+secx)` (d) `-sqrt(1+secx)`

(d)/(dx)cos^(-1)sqrt(cos x) is equal to

sqrt(secx)

(d)/(dx)cos^(-1)sqrt(cosx),0ltxlt(pi)/(2) is equal to

(d)/(dx)[cos^(-1)sqrt(((1+x))/(2))]

(d)/(dx)[cos^(-1)sqrt((1+x^(2))/(2))=

int_(-1)^((1)/(2))(e^(x)(2-x^(2))dx)/((1-x)sqrt(1-x^(2))) is equal to (sqrt(e))/(2)(sqrt(3)+1) (b) (sqrt(3e))/(2)sqrt(3e)(d)sqrt((e)/(3))

(secx-1)(secx+1)

d/(dx)(sin^(-1)x+cos^(-1)x) is equal to : (A) (1)/(sqrt(1-x^(2))), (B) (2)/(sqrt(1-x^(2))), (C) 0 (D) sqrt(1-x^(2))