Math, asked by chakkaravarthy1968, 11 months ago

How. (Cosa- sina) (cosa-sina) =cosa-sina

Answers

Answered by dstthkur
1

Answer:The Answer will be (cosa-sina)^2 not cosa-sina

Step-by-step explanation:

= (cosa-sina)(cosa-sina)

= cos^2a - cosasina

-cosasina + sin^2a

= cos^2a -2cosasina +sin^2a

= (cosa-sina)^2


doglover85: v. True
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