# Math Help - Help

1. ## Help

Write the following in terms of sin(θ) only, assume 0 ≤ θ ≤ 90°. (Remember to enter trigonometric powers such as sin2(x) as (sin(x))2.)
cot(θ) =

I don't even know how to start it.
1

2. Originally Posted by garbles
Write the following in terms of sin(θ) only, assume 0 ≤ θ ≤ 90°. (Remember to enter trigonometric powers such as sin2(x) as (sin(x))2.)
cot(θ) =

I don't even know how to start it.
1
$\cot{\theta} = \frac{\cos{\theta}}{\sin{\theta}}$
$\cos{\theta} = \sin(90^\circ -\theta)$