Good.

Good2)

No. , [tex]9= 33)

then we have

^{2}, , ...,

The exponent is a constant, 2, not the index. And you don't say what "n" is!

Good! You only need to redo (2).and finaly

4)

No. n is a fixed number and k runs from 1 to n. This isActually what does this mean

n is suppose to be the final value. The exercis said write without Sigma notation. My question is does n=k so its ?

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