Question: Find a + b , 4 a + 9 b , | a | , and | a - b | . ( Simplify your

Find a+b,4a+9b,|a|, and |a-b|.(Simplify your vectors completely.)
a=(:-6,8:),b=(:6,3:)
a+b=
4a+9b=
|a|=
|a-b|=
Find a + b , 4 a + 9 b , | a | , and | a - b | .

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