Question

Trigonometry, how to simplify this?

Answer 1

\[\sqrt{(\sin^2(2t)-4\sin(2t)\cos(2t)+4\cos^2(2t)+4+(\cos^2(2t)+4\cos(2t)\sin(2t)+4\sin^2(2t))}\]

Answer 2

Zenmo: Didn't I begin helping you with this problem yesterday? What happened?

Answer 3

\[4\sin^2{2t}\] that is the last part before it was cut off.

Answer 4

@mathmale it was a different problem involving e^x, not this one

Answer 5

oh never mind, I got this

Answer 6

The terms cancel out each other nicely, and then use sin^2x+cos^2x = 1 to solve which is 9