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

[IntegralDerivative]

Homework Statement

Homework Equations

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?

 

[blue_leaf77]

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

 

[scottdave]

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

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

 

[haruspex]

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

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