# A little rusty

1. Mar 6, 2006

### RedBurns

Could someone remind me the proper way to solve this equation. I cannot recall how.

9.8 * Sin (theta) = 7.056 * Cos (theta)

Plugging number in and working backwads I got the answer theta=36 which is correct as far as I can tell.

2. Mar 6, 2006

### CaptainJames

7.056/9.8 = tan (theta)
theta = inverse tangent of (7.056/9.8)

3. Mar 7, 2006

### VietDao29

We don't give COMPLETE SOLUTION here, in Physics Forums. :grumpy: :grumpy: :grumpy: :grumpy:
However, that's not completely correct, yet. One should also note that:
$$\tan x = \tan (x + \pi)$$ tangent function is periodic with period $$\pi$$.