SOLUTION: Point P (-20, -15) is on the terminal side of angle 0, which is in standard position. Find the six trigonometric functions of 0. What's the answer?

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Question 610319: Point P (-20, -15) is on the terminal side of angle 0, which is in standard position. Find the six trigonometric functions of 0.
What's the answer?
Answer by jsmallt9(3758) About Me  (Show Source):
You can put this solution on YOUR website!
You can use the Pythagorean Theorem to find "r", the hypotenuse:
%28-20%29%5E2+%2B+%28-15%29%5E2+=+r%5E2
400+%2B+225+=+r%5E2
625+=+r%5E2
25+=+r
Note: The "r" is always positive so we discard/ignore the negative square root.

Now we can find the Trig function values:
sin%28theta%29+=+y%2Fr+=+%28-15%29%2F25+=+%28-3%29%2F5
cos%28theta%29+=+x%2Fr+=+%28-20%29%2F25+=+%28-4%29%2F5
tan%28theta%29+=+y%2Fx+=+%28-15%29%2F%28-20%29+=+3%2F4
csc%28theta%29+=+r%2Fy+=+25%2F%28-15%29+=+5%2F%28-3%29
sec%28theta%29+=+r%2Fx+=+25%2F%28-20%29+=+5%2F%28-4%29
cot%28theta%29+=+x%2Fy+=+%28-20%29%2F%28-15%29+=+4%2F3