SOLUTION: If theta is an angle in standard position and P(-3,4) is a point of the terminal side of theta, what is the value of sin theta?

Question 718259: If theta is an angle in standard position and P(-3,4) is a point of the terminal side of theta, what is the value of sin theta?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If theta is an angle in standard position and P(-3,4) is a point of the terminal side of theta, what is the value of sin theta?
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x = -3 ; y = 4
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So r = sqrt[9+16] = 5
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sin(theta) = y/4 = 4/5
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Cheers,
Stan H.
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