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August 30, 2015
Posted by **Anon** on Wednesday, September 4, 2013 at 9:05pm.

y=sin(x)*(sinx+cosx)

- Math -
**Steve**, Wednesday, September 4, 2013 at 11:16pmjust use the product rule

If y = uv then

y' = u'v + uv'

where u=sinx and v=sinx+cosx

y' = cosx(sinx+cosx) + sinx(cosx-sinx)

= sin2x + cos2x