If `cos^(-1) sqrtp + cos^(-1) sqrt(1 -p) + cos^(-1) sqrt(1 - q) = (3pi)/(4)`, then the value of `q` is

If cos^(-1)sqrt(p)+cos^(-1)sqrt(1-p)+cos^(-1)sqrt(1-q)=(3pi)/4, then the value of q is 1 (b) 1/(sqrt(2)) (c) 1/3 (d) 1/3

if cos^(- 1)sqrt(p)+cos^(- 1)sqrt(1-p)+cos^(- 1)sqrt(1-q)=(3pi)/4 ,then the value of q is (A) 1 (B) 1/sqrt(2) (C) 1/3 (D) 1/2

cos^(-1)(sqrt((1+cos x)/2))

cos^(-1) (cos (2 cot^(-1) (sqrt2 -1))) is equal to

If cos 2 theta =(sqrt(2)+1)( cos theta -(1)/(sqrt(2))) , then the value of theta is

Prove that : 4(sin^(-1)(1/sqrt(10)) + cos^(-1)( 2/sqrt(5)))=pi

If cos^(-1)((7)/(|x|))+cos^(-1)((4sqrt(15))/(|x|))=(pi)/(2) , then:

If cos^-1p+cos^-1q+cos^-1r=pi(0 <= p,q,r <= 1). then the value of p^2+q^2+r^2+2pqr is

cos^(-1)("cos"(2cot^(-1)(sqrt(2)-1))) is equal to sqrt(2)-1 (b) pi/4 (c) (3pi)/4 (d) non eoft h e s e

Find all possible values of x and y for which cos^(-1)sqrtx+cos^(-1)sqrt(1-x)+cos^(-1)sqrt(1-y)=((3pi)/4)