Math, asked by babaraliap, 1 year ago

Sin 67.cos 23 + sin23.cos6

Answers

Answered by AndyPro
1

The question is actually

sin 67 cos 23 + sin 23 cos 67.

Now since

sin a cos b + cos a sin b = sin (a+b)

We have

sin (67 + 23)

sin 90

1

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