Question

WILL GIVE 5 STARS, PLEASE HELP!! multiple choice

Solve f^2i=−f^2t+h for f.

Answer 1

Answer: D

Explanation:

f²i = -f²t + h

+f²t +f²t

f²i + f²t = h

f²(i + t) = h

`(f^(2)(i + t) )/(i + t) = (h)/(i + t)`

`f^(2)= (h)/(i + t)`

`\sqrt{f^(2) } = \sqrt{(h)/(i + t) }`

f = +/-
`{\sqrt{(h)/(i + t) }`