In which quadrant does the angle θ lie given that sin θ 0? Quadrant I Quadrant II Quadrant III Quadrant IV

Question

In which quadrant does the angle θ lie given that sin θ < 0 and cos θ > 0? 
	
Quadrant I

	
Quadrant II

	
Quadrant III

	
Quadrant IV

3mar · Answer

Well, I am here.

roo777x · Answer

i guessed it could be quadrant III...

jagr2713 · Answer

No, sin and cos are both negative in Q 3

roo777x · Answer

or Q IV...probably wrong again...

jagr2713 · Answer

Ok Think of it like this. Where is Y negative ?

roo777x · Answer

Q IV?

jagr2713 · Answer

Correct :D

roo777x · Answer

thanks mate

jagr2713 · Answer

The way i do this is i think of cos and sin as (X,Y) and that should help :D $$ \huge{\color{purple}{\textbf{W}} \color{orange}{\cal{E}} \color{green}{\mathbb{L}} \color{blue}{\mathsf{C}} \color{maroon}{\rm{O}} \color{red}{\tt{M}} \color{gold}{\tt{E}} \space \color{orchid}{\mathbf{T}} \color{Navy}{\mathsf{O}} \space \color{OrangeRed}{\boldsymbol{O}} \color{Olive}{\mathbf{P}} \color{Lime}{\textbf{E}} \color{DarkOrchid}{\mathsf{N}} \color{Tan}{\mathtt{S}} \color{magenta}{\mathbb{T}} \color{goldenrod}{\mathsf{U}} \color{ForestGreen}{\textbf{D}} \color{Salmon}{\mathsf{Y}} \ddot \smile }$$ Our terms and conditions explained here: http://www.http://openstudy.com/study#/updates/5779e9f2e4b0c8de2563d9b5