Need help with double angle identities

sk8erboi

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Jan 29, 2018
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Hi lol apologies for all the threads i've been making but yet another question has tripped me up. Here:

If sinx = 3/5 and 0 < x < pi/2, find the exact value for sin2x

I believe I'll be fine if someone could point me in the right direction. Thanks in advance
 

MarkFL

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Nov 24, 2012
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Can you state the double-angle identity for sine?
 

sk8erboi

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Jan 29, 2018
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