Question

sin50=0.760 to cos 40=​

Answer 1

Answer:

hello mate..

Step-by-step explanation:

Given Cosx =cos40°.sin50°+sin40°.cos50°

=cos(90°-50°).sin50°+sin(90°-50°).cos50°

=sin50°.sin50°+cos50°.cos50°

=sin^2 50°+ cos^2 50°

=1

Now,cos x = 1

cos x =cos 0°

x=0

hope you get your answer..

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Answer 2

Answer:

cos=0.76604431

Step-by-step explanation:

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