Math, asked by nakulmahra2000, 5 months ago

(i) cost + cos D का सूत्र लिखिये।
(ii) Sin3x का त्रिकोणमितीय सूत्र लिखिये।​

Answers

Answered by Ankitabheel
1

Answer:

CosT + Cos D = 2Cos[(T+D) /2] Sin[(T-D)]our answer I think

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