Given that a+b=90° show that√cosa cosecb-cos a sin b = sin a
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Answer-
Given- a + b = 90 degree
LHS
root CosA cosec(90-A) - cosAsin(90-A)
root CosA secA - cosAcosA
root 1 - cos^2A
root Sin^2A
SinA = RHS
hence proved
Given- a + b = 90 degree
LHS
root CosA cosec(90-A) - cosAsin(90-A)
root CosA secA - cosAcosA
root 1 - cos^2A
root Sin^2A
SinA = RHS
hence proved
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