Помогите) 4*√2sin П/8 * cos П/8

Question

Помогите) 4*√2sin П/8 * cos П/8

Answer 1

4.√2.sinπ/8.cosπ/8=√2.2.2.sinπ/8.cosπ/8=√2.2.sin2π/8=
=√2.2.sinπ/4=√2.2.√2/2=2