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Eva8 [605]
2 years ago
7

I need this ASAP PLZ

Mathematics
1 answer:
Rasek [7]2 years ago
3 0
I and -2 is the solve for the equation
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2 years ago
What is the value of cos θ given that (-2, 9) is a point on the terminal side of θ?
liq [111]

Answer:

a)  cosθ  = \frac{-2\sqrt{85} }{85}

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<u><em> Step(i):</em></u>-

Given point ( x , y ) = ( - 2 , 3 )

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  x = r cos θ and y = r sinθ

where   r = \sqrt{x^{2} +y^{2} }  

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<u><em>Step(ii)</em></u>:-

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       cosθ  = \frac{-2\sqrt{85} }{85}

3 0
3 years ago
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