Math, asked by shubhamkumar8677, 11 months ago

formula of cos^2A-Sin^2B=

Answers

Answered by niharikaramayanam

1

Answer:

cos(a+b)*cos(a-b) = cos^2a - sin^2b tan(x/2) = (1-cosx)/(sinx)

Step-by-step explanation:

I hope this helps you

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