i have this problem in the picture below ...can u help me about the problem??

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ahmed altaee on 12 Dec 2016

Commented: Greg Dionne on 14 Dec 2016

i have this problem in the picture below

can u help me about the problem??

Greg Dionne on 12 Dec 2016

sin(x) and cos(x) require parentheses about their arguments.

So you need to say sin(u(3)) and cos(u(3))

ahmed altaee on 13 Dec 2016

Edited: ahmed altaee on 13 Dec 2016

i did it and stay the same problem

Greg Dionne on 14 Dec 2016

That looks fine to me. Maybe there's something else nearby or u() and g are not defined like you think they are? Good luck.

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