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**1. Homework Statement**

for what values of x is cos(x) - sin(x) < cox(x) + sin(x) where 0 =< x =< 2pi

**2. Homework Equations**

none.

**3. The Attempt at a Solution**

I actually drew out the funtions and added them.

In my graphs, I get that:

cos(x) - sin(x) < cos(x) + sin(x) for for 0 =< x =< pi

When I try to show this in Matlab, i ger messy results?

Any ideas?