" If "alpha" and "beta" are complementary angles then "sin^(2)(90^(@)-alpha)+sin^(2)(90^(@)-beta)=

If alpha , beta are complementary angles , then sin^(2) alpha + sin^(2) beta =

If alpha , beta are supplementary angles , then cos^(2)alpha + sin^(2) beta =

Prove that if two angles alphaandbeta are complementary angles, then sin^(2)alpha+sin^(2)beta=1

If alpha and beta are complementary angles to each other, the find the value of (1-sin^2 alpha)(1-cos^2 alpha)(1+cot^2 beta)(1+tan^2 beta)

If alpha , beta are complementary angles , sin alpha = 3//5 , then sin alpha cos beta - cos alpha sin beta =

If alpha and beta are complementary angles, then show that cot beta+cos beta= (cos beta)/(cos alpha) (1+sin beta) .

If cos(alpha+beta)=0 then sin^(2)alpha+sin^(2)beta

If alpha,beta are complementary angles and sin alpha=(3)/(5), then sin alpha cos beta-cos alpha sin beta=