Question

sin45°+cos45°+2sin30°-4cos60°

Answer 1

$\frac{\sqrt{2} }{2}+ \frac{\sqrt{2} }{2}+2*\frac{1}{2}-4* \frac{1}{2}\\\frac{\sqrt{2} }{2}+ \frac{\sqrt{2} }{2}+1-2\\ \sqrt{2}-1$