Answer:
a) cosθ = 
Step-by-step explanation:
<u><em> Step(i):</em></u>-
Given point ( x , y ) = ( - 2 , 3 )
We know that the polar co-ordinates
x = r cos θ and y = r sinθ
where

<u><em>Step(ii)</em></u>:-
x = r cos θ
cosθ 
cosθ = 
cosθ = 
<h3>I hope it is helpful for you </h3>
Answer:
-3q
Step-by-step explanation:
-q is actually -1q so you just divide 3 by -1 and get -3q