Problems 104 113. The purpose of these problems is to keep the material fresh in your

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Problems 104 – 113. The purpose of these problems is to keep the material fresh in your mind so that you are better prepared for later sections, a final exam, or subsequent courses such as calculus.

For v = −2i − j and w = 2i + j, find the dot product v · w and the angle between v and w .

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