Question

5srtq2sin3П/8*cos3П/8

Answer 1

5√2*1/2*2*sin3П/8*cos3П/8=(5√2/2)*sin(2*3П/8)=(5√2/2)*sin(6П/8)=
=(5√2/2)*sin(3П/4)=(5√2/2)*√2/2=5/2=2,5

Answer 2

It seems like you've entered a mathematical expression, but it's a bit unclear. It appears to be a combination of trigonometric functions and numbers, but the formatting might be incorrect or incomplete. Could you please provide more context or clarify the expression you're trying to convey? This will help me provide you with a more accurate response.