SOLUTION: the point (-10,3) un on the terminal side of an angle t. Find cos(t) to 2 decimal places.

SOLUTION: the point (-10,3) un on the terminal side of an angle t. Find cos(t) to 2 decimal places.

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Question 1039811: the point (-10,3) un on the terminal side of an angle t. Find cos(t) to 2 decimal places.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
the point (-10,3) is on the terminal side of an angle t. Find cos(t) to 2 decimal places.
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x = -10, y = 3
So, r = sqrt[100+9] = sqrt(109)
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Ans: cos(t) = x/r = -10/sqrt(109) = -0.96
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Cheers,
Stan H.
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