Math, asked by themastah427, 11 months ago

prove that 2 cos 88 into cos 5 a - 2 cos 12 a into Cos A divided by 2 cos a cos A + 2 cos 12 a into sin 9 a equal to tan 4

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Answered by VChaitanya2

1

Answer:

idk

Step-by-step explanation:

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