Math, asked by shamimsafi23, 5 months ago

cosA. cos(90-A) -sinA.sin(90-A) =0

Answers

Answered by Aana2003

0

Answer:

cosA.sinA-sinA.cosA=0

l.h.s=r.h.s

Answered by saiyedfazil

2

cosA. cos(90-A) - sinA. sin(90-A) =0

cosA. sinA - sinA.cosA =0 {cos(90-A)=sinA ,sin(90-A)=cosA}

0 = 0

LHS = RHS

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