Answer:
35-b
Step-by-step explanation:
the answer is 35-b
Around my room before you came.
Answer:
a) cosθ = ![\frac{-2\sqrt{85} }{85}](https://tex.z-dn.net/?f=%5Cfrac%7B-2%5Csqrt%7B85%7D%20%7D%7B85%7D)
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
![r = \sqrt{(-2)^{2} +(9)^{2} } = \sqrt{4+81} = \sqrt{85}](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%7B%28-2%29%5E%7B2%7D%20%2B%289%29%5E%7B2%7D%20%7D%20%3D%20%5Csqrt%7B4%2B81%7D%20%3D%20%5Csqrt%7B85%7D)
<u><em>Step(ii)</em></u>:-
x = r cos θ
cosθ ![= \frac{x}{r}](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7Bx%7D%7Br%7D)
cosθ = ![\frac{-2}{\sqrt{85} } = \frac{-2}{\sqrt{85} } X \frac{\sqrt{85} }{\sqrt{85} }](https://tex.z-dn.net/?f=%5Cfrac%7B-2%7D%7B%5Csqrt%7B85%7D%20%7D%20%3D%20%5Cfrac%7B-2%7D%7B%5Csqrt%7B85%7D%20%7D%20X%20%5Cfrac%7B%5Csqrt%7B85%7D%20%7D%7B%5Csqrt%7B85%7D%20%7D)
cosθ = ![\frac{-2\sqrt{85} }{85}](https://tex.z-dn.net/?f=%5Cfrac%7B-2%5Csqrt%7B85%7D%20%7D%7B85%7D)
Answer:
read the code of conduct u can get baned for this stop cheeting
Step-by-step explanation: