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In which quadrant does θ lie given that sinθ<0 and cosθ<0 ?

 

Quadrant I

 

Quadrant II

 

Quadrant III

 

Quadrant IV

 Nov 12, 2018
 #1
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Q3......both x, y are negative in this quadrant  and r is always positive

 

So   

sin  (theta) =  y / r  ⇒  negative

 

cos (theta) =  x / r ⇒  negative

 

 

cool cool cool

 Nov 12, 2018

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