Math, asked by aryandeore24, 1 year ago

Show that
a) cos x cos 7x - cos 3x cos 11x=
sin 4x sin 10x

Answers

Answered by viswacps

4

Answer:

it is the answer so it is the answer as it is the answer that's why it's the answer finally it's only the answer

Step-by-step explanation:

it is the answer so it is the answer as it is the answer that's why it's the answer finally it's only the answer

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