Answer:
The answer for this question would be maybe D-
SORRY IF I'M WRONG
It would be the last one. The dots must be open and x must move to the right.
You just have to arrange the equation such that the p is the only term at the left hand side of the equation. Express it in terms of r and m.
r = 1/2*m²*p
Divide both left and right hand side equations by 1/2*m²
p = r/(1/2 *m²)
Take the reciprocal of 1/2 and multiply it. The final answer is:
p = 2r/m²
Answer:
See it in the pic.
Step-by-step explanation:
See it in the pic.
If this is supposed to be

Then this can simply be reduced to

by the double angle formula for cosine