SOLUTION: Find the exact values of the six trigonometric functions of theta if the terminal side of theta in standard position contains the point (-5,-4). Please help!

Question 185484This question is from textbook
: Find the exact values of the six trigonometric functions of theta if the terminal side of theta in standard position contains the point (-5,-4). Please help! This question is from textbook

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find the exact values of the six trigonometric functions of theta if the terminal side of theta in standard position contains the point (-5,-4).
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You have x = -5 and y = -4 ; solve for "r".
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r^2 = 5^2 + 4^2 = 41
r = sqrt(41)
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sin(theta) = y/r = -5/sqrt(41)
cos(theta) = x/r = -4/sqrt(41)
tan(theta) = y/x = 5/4
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the csc, sec, and cot are the inverse of the sin, cos and tan.
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Cheers,
Stan H.
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