Math, asked by kalangikranthi123, 1 year ago

PT cos2 15 -cos2 75 =root3/2

Answers

Answered by soumya1821

6

I hope it will help you..

Attachments:

dolypahi: It is given cos and why did u put sin

soumya1821: cos(90-theta)=sin theta

dolypahi: Thanks

soumya1821: no problem..

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