Question
Asked Jan 26, 2020
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Which of the following are always true, and which are not always true? Give reasons for your answers.

a. u .u = |u |

b. u * 0 = 0 * u = 0

c. u * (-u) = 0

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Expert Answer

Step 1

a) False

Calculus homework question answer, step 1, image 1
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Step 2

b) True

Calculus homework question answer, step 2, image 1
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Step 3

c) True...

Calculus homework question answer, step 3, image 1
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