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11-06-2017
Mathematics

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tan a = 6/8; a is in QIII. What is sin 2a?

-12/16

24/25

24/32

-25/24

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Ninayzl Ninayzl

11-06-2017

24/25
sin(2a)=2sin(a)cos(a), and you know tan(a), draw the picture and you will see it

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