Math, asked by yesharadhya97, 7 months ago

The value of cos 40° + sin 10° is

Answers

Answered by sritarutvik

3

Step-by-step explanation:

cos40 +sin10=sin(90-40)+sin10

=sin50 +sin10

=2sin(50+10)/2 cos(50-10)/2

=2 sin30cos20

=2*1/2cos20

=cos20

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