2 years ago

Prove that cos 2theta - cos 4theta + cos 6theta - cos 12theta = 4 sin 3theta sin 5theta cos 4theta

2 answers:

Vikki [24]2 years ago

8 0

Answer:

i have no idea'

Step-by-step explanation:

Olin [163]2 years ago

8 0

Cos=sin=cos

Mark brainliest please

Hope this helps you

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