cot x = cos x / sin x
cot x = .85 / .52 = 1.6346
F (5x^2 - 1) = 75x^4 - 35x^2 + 6
176 and 180 all the other numbers are good
You subtract the ones place, then the tens, and lastly the hundreds place. Your answer will be 184 if you are looking for the answer as well.
