Suppose that sin(theta)=3/5 and theta is in the second quadrant. Find the values of sin(2(theta)), cos(2(theta)), and tan(2(theta)).

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14-08-2016
Mathematics

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Suppose that sin(theta)=3/5 and theta is in the second quadrant. Find the values of sin(2(theta)), cos(2(theta)), and tan(2(theta)).

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meerkat18 meerkat18 · Answer 1 · 2016-08-17T19:22:12+02:00

meerkat18 meerkat18

17-08-2016

we are asked to evaluate the value of sin 2 theta, cos 2 theta and tan 2 theta where theta is a 2nd quadrant angle and the expression sin theta = 3/5 is valid. In this case, theta is equal to 143.13 degrees. hence sin2 theta is equal to -0.96; cos 2 theta is equal to 0.28 and tan 2 theta is equal to -3.4286

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