Question 885457
Given:
(1) tan(t) = x or
(2) tan(t) = x/1. so one side is x and the other side is 1. The third side, the hypoteneus, is given by
(3) c = sqrt(x^2 + 1)
Then the other trig functions of t are
(4) sin(t) = x/sqrt(x^2 + 1) and
(5) cos(t) = 1/sqrt(x^2 + 1)
I believe this site includes pre-calc.