Math, asked by rspstmlgmailcom, 7 months ago

if sin5x=cos4x then find x

Answers

Answered by charmi1137

2

Answer:

sin5x=cos4x

cos(90-5x)=cos4x

therefore cos(90-teta)

90-5x=4x

90=4x+5x

90=9x

x=90/9

x=10

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