Use an addition or subtraction formula to write cos 41° cos 44º – sin 41 ºsin...

Question

Question

Use an addition or subtraction formula to write cos 41° cos 44º – sin 41 ºsin 44 as a trigonometric function of one number. Y

Answer 1

Answer #1

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kle know that Cos A los B - Sina.sinB = cos(A+B) Here A=.41° , B=44 Cos ti costa - Sin 48° sin 44 = cos(fit 44 ) = cos (85) =

Answer 2

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