Question

evaluate sin30 +cos30​

Answer 1

Answer:

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Answer 2

The value of sin30 + cos30 is (1+√3)/2.

Given,

A trigonometric expression sin30 + cos 30.

To Find,

The value of the given expression.

Solution,

The given expression is

sin30 + cos30

Now, we know the value of sin30

sin30 = 1/2

Also,

sin²30+cos²30= 1

So,

(1/2)²+cos²30 = 1

cos30 =√(1-1/4)

cos30 = √3/2

Now, substituting the values

sin30 + cos30 = 1/2+√3/2 = (1+√3)/2

Hence, the value of sin30 + cos30 is (1+√3)/2.

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