Math, asked by hmo940045, 3 months ago

cosC+ cosD का सूत्र लिखिये।

Answers

Answered by jyotijyoti99581

1

Answer:

sinC+sinD = 2sinC+D . cosC-D. 2 2.

sinC-sinD = 2cosC+D . sinC-D. 2 2.

cosC+cosD = 2cosC+D . cosC-D. 2 2.

cosC-cosD = -2sinC+D . sinC-D.

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