Mathematics, 21.07.2019 06:00 dmoney34
Find the value of sin2a, if tana=-12/5 in the fourth quadrant
Answers: 1
is in the fourth quadrant 
we know that 
should be positive, so when we take the square root here, we should take the positive root.
to be negative. So,
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Find the value of sin2a, if tana=-12/5 in the fourth quadrant...
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