10sin45 * cos135=8 sin30 * cos 120=4sin150*cos60=22√2cos(-П/3) sin (-П/4)=

Question

10sin45 * cos135=
8 sin30 * cos 120=
4sin150*cos60=
22√2cos(-П/3) sin (-П/4)=

Answer 1

10син45 * кос135= 10*√2/2*√2/2=5