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Prove That 2cos? = v2 + v2 + 2cos 4?


Prove That
2cos? = v2 + v2 + 2cos 4?

Grade:10

1 Answers

SAGAR SINGH - IIT DELHI
878 Points
13 years ago

Dear student,

Your question is not much clear....there is some ? in ur doubt....please check it...

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