Question 469670: How do I find sin A, cos A, tan A, csc A, sec A, and cot A(maybe not all of these but at least one to get started) when given a graph with a line drawn from point (0,0) to (-4,3) and the arrow suggesting angle A is on the right side of the line as if an obtuse angle?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! How do I find sin A, cos A, tan A, csc A, sec A, and cot A(maybe not all of these but at least one to get started) when given a graph with a line drawn from point (0,0) to (-4,3) and the arrow suggesting angle A is on the right side of the line as if an obtuse angle?
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You have x = -4 and y = 3
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Solve for "r":
r = sqrt[4^2+3^2] = 5
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sin = y/r = 3/5
cos = x/r = -4/5
tan = y/x = -3/4
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csc = r/y = 5/3
sec = r/x = -5/4
cot = x/y = -4/3
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Cheers,
Stan H.
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