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Evaluate 2sin30+5tan60sin60, leaving yo...

Evaluate 2sin30+5tan60sin60, leaving your answer in surd form.

A.

233+10

B.

3215

C.

32+15

D.

23310

Correct answer is A

2sin30+5tan60sin60

sin30=12;tan60=3;sin60=32

\)

= \frac{1 + 5\sqrt{3}}{\frac{\sqrt{3}}{2}}

= \frac{2(1 + 5\sqrt{3})}{\sqrt{3}}

= \frac{2 + 10\sqrt{3}}{\sqrt{3}}

Rationalizing, we get

= \frac{2\sqrt{3} + 30}{3}

= \frac{2}{3} \sqrt{3} + 10