Math, asked by dhananjaykumarpc8j05, 1 year ago

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

Answers

Answered by subhrohan04pc0op1

20

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

Answered by Explode

26

L.H.S

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

= cos A . sin A - sin A . cos A

= 0

= R.H.S [Proven]

Hope it will help you .

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