Question

ПОМОГИТЕ РЕШИТЬ! sin(-45°)+cos(-45°)+2sin(-30°)-4cos(-60°)

Answer 1

$\frac{ \sqrt{2}}{2} + \frac{ \sqrt{2}}{2}+2*(- \frac{1}{2})-4*( \frac{1}{2} ) =-1-2=-3$

Answer 2

$sin(-45)+cos(-45)+2sin(-30)-4cos(-60)=- \frac{ \sqrt{2} }{2} + \frac{ \sqrt{2} }{2} - \\ -1-4* \frac{1}{2} =-1-2=-3$