SOLUTION: P(2,-3) is a point on the terminal arm of the angle θ in standard position. Calculate cos θ and give your answer to 3 decimal places.

SOLUTION: P(2,-3) is a point on the terminal arm of the angle θ in standard position. Calculate cos θ and give your answer to 3 decimal places.

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Question 1085574: P(2,-3) is a point on the terminal arm of the angle θ in standard position. Calculate cos θ and give your answer to 3 decimal places.
Answer by ikleyn(52855) (Show Source): You can put this solution on YOUR website!
.

 =  =  =  = +/- .


The point P(2,-3) is located in  Q4,  where    is positive.


Therefore, the final answer is   = .

Solved.

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