Math, asked by Hazelll, 1 year ago

cos48 degree ×cos12 degree

Answers

Answered by Anonymous

1

cos 48 degree * cos (90-12)

[ cos (90 - A) = sin A]

=> cos 48 degree * sin 48 degree...

Jindalnayan: cos ( 90-12 ) ° = sin 12° not sin 48°

Anonymous: ohh yes i see

Anonymous: in fast typing i typed wrong

Anonymous: bt formuala is correct one can correct it

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