-32корень из2 sin945градусов

Question

-32корень из2 sin945градусов

Answer 1

-32*sqrt(2)*sin(945) = -32*sqrt(2)*sin(2*360 + 225) = -32*sqrt(2)*sin(225) = -32*sqrt(2)*sin(180+45) = -32*sqrt(2)*(-sin(45)) = 32*sqrt(2)*sqrt(2)/2 = 32