SOLUTION: Find sin(2x), cos(2x), and tan(2x) from the given information. sin(x) = − 5/13, x in Quadrant III

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Question 1192633: Find sin(2x), cos(2x), and tan(2x) from the given information.
sin(x) = − 5/13, x in Quadrant III
Answer by Alan3354(69443) About Me  (Show Source):
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Find sin(2x), cos(2x), and tan(2x) from the given information.
sin(x) = − 5/13, x in Quadrant III
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Step 1 find the cos(x).
sin(2x) = 2sin(x)cos(x)
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cos(2x) = sqrt(1 - sin^2(2x))
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tan(2x) = sin/cos of 2x