if `2sec2alpha=tan beta+cot beta` then one of the value of `alpha+beta` is (A) pi (B) `npi- pi/4, n in ZZ` (C) `pi/4` (D) `pi/2`

If 2 sec 2 alpha = tan beta + cot beta, then one of the values of alpha + beta is

If "2sec" (2alpha) = "tan" beta + "cot"beta , then one of the value of alpha + beta is

If 2|sin2 alpha|=|tan beta+cot beta|,alpha,beta in((pi)/(2),pi) then the value of alpha+beta is (a) (3 pi)/(4) (b) pi(c)(3 pi)/(2) (d) (5 pi)/(4)

If 2 sin 2alpha=tan beta,alpha,beta, in((pi)/(2),pi) , then the value of alpha+beta is

If alpha+beta=(pi)/(2) and beta+gamma=alpha, then find the value of tan alpha.

If 0

0

If alpha,beta, gamma re the roots of the equations x^3+px^2+2x+p=0 then the general value of tan^-1 alpha+tan^-1 beta+tan^-1 gamma is (A) npi (B) (npi)/2 (C) (2n+1) pi/2 (D) dependent upon the value of p.

If (pi)/(2)