[" 43) If "alpha" and "beta" are complementary angles "],[sin^(2)(90^(@)-alpha)+sin^(2)(90^(@)-beta)=]

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

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

If alpha,beta are complementary angles, sin alpha=(4)/(5), then sin alpha cos beta+cos alpha sin beta=

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

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