Math, asked by bhaveshkathoke39, 15 days ago

The expression
cos 6x + 6cos 4x + 15cos 2x + 10/cos5x + 5cos3x +10cosx
is
cos 5x + 5cos 3x + 10cos x

Answers

Answered by ankanbiswas9580

0

Answer:

write the question properly

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