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January 28, 2015

January 28, 2015

Posted by **gopi** on Friday, December 28, 2012 at 4:09am.

- trignometry -
**Steve**, Friday, December 28, 2012 at 4:54amx = pi/4, so cos2x = 0

since y ≠ pi/2, sin2y ≠ 0

I suspect a typo somewhere

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