Question

sin30°cos60°+sin60°cos30°=​

Answer 1

$\sin(30) = \frac{1}{2} \\ \\ \cos(60) = \frac{1}{2} \\ \\ \sin(60) = \frac{ \sqrt{3} }{2} \\ \\ \cos(30) = \frac{ \sqrt{3} }{2}$

$\frac{1}{2} \times \frac{1}{2} + \frac{ \sqrt{3} }{2} \times \frac{ \sqrt{3} }{2} = \\ \\ = \frac{1}{4} + \frac{3}{4} = \frac{4}{4} = 1$

Coroniță pls

Answer 2

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