7.75 is the answerto the equation
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:
x=-18
Step-by-step explanation:
To move the 4 to the other side you need to subtract both sides by 4 (If you do something to one side you need to do it on the other side)
x+4-4=-14-4
Simplify:
x=-18
Hope this helps!
C^2-a^2=b^2 b^2=81-36=45 x^2/36-y^2/45=1?
