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**1. Homework Statement**

Let X be a standard normal random variable. Calculate E(XcosX), E(sinX), and [tex]E\left(\frac{X}{1+X^{2}}\right)[/tex]

**2. Homework Equations**

**3. The Attempt at a Solution**

I have no idea where to start with this. I am not seeing any connection between it and the chapter reading/examples. Can someone show me how to start on one of them. Thanks.