Step-by-step explanation:
sin(2x) + cos(3x)
Use double angle formula sin(2x) = 2 sin x cos x.
Use triple angle formula cos(3x) = 4 cos³x − 3 cos x.
Substitute:
2 sin x cos x + 4 cos³x − 3 cos x
Answer:
i thinkkk 40
if not my badd
I guess it's 63degrees
I hope it will help
I will help, what is your book called?
40/9
9y = -8x + 40
y = -8/9x + 40/9
