Question

please give me the answers to the picture please​

Answer 1

Answer:

Step-by-step explanation:

$cos60.co30+sin60.sin30\\\frac{1}{2} .\frac{\sqrt{3} }{2} +\frac{\sqrt{3} }{2} .\frac{1}{2} \\=\frac{\sqrt{3} }{4} +\frac{\sqrt{3} }{4} \\=\frac{2\sqrt{3} }{4} \\=\frac{\sqrt{3}}{2}$