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Question

The terminal ray of an angle passes through the point (5,12).

What is the value of cosine for this angle?
10 years ago

Answers

herp_derp
x = 5
y = 12
therefore,
r = √(12² + 5²) = 13

recall that cosθ = x/r
therefore...

cosθ = 5/13
10 years ago

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