Evaluate result of cos pi/6+sin pi/3?

Expert Answers

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cos pi/6 + + sinpi/3

We know that:

cos pi/6 = cos 30 = sqrt3/2

Also:

sin pi/3 = sin60 = sqrt3/2

Then:

cos pi/6 + sin pi/3 = sqrt3/2 + sqrt3/2

                             = 2sqrt3/2 = sqrt3

==> cos pi/6 + sin pi/3 = sqrt3

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