Math, asked by varun306835, 5 months ago

cos² theta-sin² theta = 2cos² theta-1
prove Don't give wrong answer please........

Answers

Answered by sanjanabarbie

2

Step-by-step explanation:

on solving rhs

2cos^2 theta -1

2cos^2 theta-(cos^2 theta+ sin^2 theta)

cos^2theta - sin^2 theta

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