# Solving: 3cos(t)-sin(t)cos(t)=0

1. May 16, 2017

### IntegralDerivative

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
cos(t) (3-sin(t)) = 0

but I get cos(t) =0 and sin(t)=3

but I thought sin(t) =3 is undefined?

2. May 16, 2017

### blue_leaf77

Then the factor that will give you the solutions is just $\cos t = 0$.

3. May 17, 2017

### scottdave

Then the next step would be: What values of t make cos(t) equal zero?

4. May 18, 2017

### haruspex

No, you get cos(t) =0 or sin(t)=3.