SOLUTION: If point P is on the terminal side of theta, find the functions of theta and draw a picture. P(-2,4)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: If point P is on the terminal side of theta, find the functions of theta and draw a picture. P(-2,4)      Log On


   

Question 1090103: If point P is on the terminal side of theta, find the functions of theta and draw a picture.
P(-2,4)
Answer by Alan3354(69443) About Me  (Show Source):
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If point P is on the terminal side of theta, find the functions of theta and draw a picture.
P(-2,4)
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Step 1, find the radius.
r = sqrt(x^2 + y^2) = 2sqrt(5)
----
sin = y/r
cos = x/r
tan = y/x
=================
cot = 1/tan
sec = 1/cos
csc = 1/sin