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If sin(x) = 5/13, and x is in quadrant 1, then tan(x/2) equals what?

Annie Barnes

in Mathematics

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Donald Ward on January 15, 2018

is in quadrant I, what , what that means , so belongs to the same quadrant.Now,Therefore , it follows thatSince belongs to the first quadrant, take the positive root ( in quadrant I). Then it is also positive in quadrant I, so take the positive root again. You're left with


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