CPM Homework Help : CALC Problem 11-21

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Home > CALC > Chapter 11 > Lesson 11.1.2 > Problem 11-21

11-21.

If vector $\vec { a } = 3 \vec { i } + 5 \vec { j }$ , $\vec { b } = - 9 \vec { j }$ and $\vec { c } = 6 \vec { i } - 8 \vec { j }$ , find:

$6 \vec { a } + \vec { b }$

$\frac { 1 } { 2 } \vec { c } + \vec { a }$

$5 \frac {\vec{c} } { ||\vec{c} || }$

$\| \vec { a } - \vec { b } ||$

Hint:

Review the homework help for problem 11-10.

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