Math online homework

I need an explanation for this Calculus question to help me study.

I have an online homework due on the 3rd of February 2020.

3 sections:

HW CH13 S3 : 4 Questions only ( NO PARTS )…. Dot Product

HW CH13 S4: 4 Questions ( NO PARTS )… Cross-product

HW CH13 S5: 10 Questions ( NO PARTS )…

The homework is online at :

username: naa7163

password: alsubhi_2

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