If you're looking for the angle it is a 30, 60, 90, but if you're looking for the length of the hypotenuse it's 5
I would say its A but I'm not 100%
Answer: B
Step-by-step explanation:

Every real is solution of the equation .
Hello,
y=sin²(cos(2x))
y'=2*sin(cos(2x))*cos(cos(2x))*(-sin(2x)*2)
= -4*sin(cos(2x))*cos(cos(2x))*sin(2x)
The double implication "if and only if" is graphically represented by an arrow pointing in both direction, so the correct writing is
