Question

Please help on some trigonometry, it would be greatly appreciated!
How to solve this equation?

Answer 1

\[\cos(\theta)+\sin(\theta)=0\]

Answer 2

\[\cos(\theta)+\sin(\theta)=0\]

Answer 3

rearrange it. Cos theta is what in terms of sine?

Answer 4

Divide by costheta
You get Sin(theta)/Cos(theta) + Cos(theta)/cos(theta) =o

[Sinx/cosx = tanx (a law of trigs)]
so the same as tan(theta) + 1=0

So tan(theta)=-1

Answer 5

hope this helps :)