Math, asked by Aayush2215269, 6 months ago

evaluate cos 12 -sin 78

Answers

Answered by desaipreet2105

3

Answer:

Step-by-step explanation:

cos 12 - sin 78

cos 12 = sin 78 [cos theta = sin (90 - theta)

so,

sin 78 - sin 78 => 0

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