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**1. on #1 c) of the homework:**

http://www.math.ubc.ca/~oyilmaz/courses/m267/hmk3.pdf [Broken]

how do i multiply this summation?

http://www.math.ubc.ca/~oyilmaz/courses/m267/hmk3.pdf [Broken]

how do i multiply this summation?

## Homework Equations

**3. what i did was i multiplied the 2 expos and made on of the k indexes a 'm' instead and i got [tex]\sum e**

^{i(k+m)t}[/tex]
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