Question

Cos 60° COS45° + sin 45°x sin 30°.....step by step please​

Answer 1

Answer:

cos60.cos45=sin45.sin30

=$\frac{1}{2} *\frac{1}{\sqrt{2} }+\frac{1}{\sqrt{2} }*\frac{1}{2}$

=$\frac{1}{2\sqrt{2} } +\frac{1}{2\sqrt{2} }$

=$\frac{2}{2\sqrt{2} }$

$\frac{1}{\sqrt{2} }$

Step-by-step explanation:

plz mark me as brainliest