(tan alpha+cosec beta)^(2)-(cot beta-sec alpha)^(2)=

(tan alpha+cos ec beta)^(2)-(cot beta-sec alpha)^(2)=2tan alpha cot beta(cos ec alpha+sec beta)

Prove that: tan^(-1){(cos2 alpha sec2 beta+cos2 beta sec2 alpha)/(2)}=tan^(-1){tan^(2)(alpha+beta)tan^(2)(alpha-beta)}+tan

If x sec alpha+y tan alpha=x sec beta+y tan beta=a , then sec alpha*sec beta=

(sec alpha * sec beta + tan alpha tan beta )^(2)-( sec alpha * tan beta + tan alpha * sec beta )^(2) =

Prove the following identity: (1+tan alpha tan beta)^(2)+(tan alpha)(tan alpha-tan beta)^(2)=sec^(2)alpha sec^(2)beta

consider 3 sin beta =sin(2alpha+beta). Let K be the value of tan(alpha+beta)/(tan alpha)and W the value of the product (cot alpha+cot(alpha+beta))*(cot beta-3 cot(2 alpha +beta)). Find the value of K W.

If (sec alpha+tan alpha)(sec beta+tan beta)(sec gamma+tan gamma)=tan alpha tan beta tan gamma, then (sec alpha-tan alpha)(sec beta-tan beta)(sec gamma-tan gamma)=