Accountancy, asked by suyogmulukh7, 6 months ago

find the value of (cos tetha + sin tetha)^2 + ( cos tetha - sin tetha)^2

Answers

Answered by reshamlovedoraemon

1

answer=2

Explanation:

(cosQ+sinQ)^2=(cosQ-sinQ)^2+4cosQsinQ

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