SOLUTION: If an angle x measured counter clockwise from the positive x axis terminates in the third quadrant, which of the following is true? A) both of sin(x) and cos(x) are negative B)

Algebra ->  Finance -> SOLUTION: If an angle x measured counter clockwise from the positive x axis terminates in the third quadrant, which of the following is true? A) both of sin(x) and cos(x) are negative B)      Log On


   



Question 1089327: If an angle x measured counter clockwise from the positive x axis terminates in the third quadrant, which of the following is true?
A) both of sin(x) and cos(x) are negative
B) both of sin(x) and cos(x) are positive
C) sin(x) is negative and cos(x) is positive
D) sin(x) is positive and cos(x) is negative

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If an angle x measured counter clockwise from the positive x axis terminates in the third quadrant, which of the following is true?
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Look at the unit circle.
r always positive, = +1.
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sin = y/r
cos = x/r