Answered

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Find the indicated quantity, given u = (-5, -9), v = (5, -8).Step 3 of 4: Find ||vll - 3. Round your answer to two decimal places.

Find The Indicated Quantity Given U 5 9 V 5 8Step 3 Of 4 Find Vll 3 Round Your Answer To Two Decimal Places class=

Sagot :

To find ||v|| we can use the following formula:

[tex]||v||=\sqrt{a^2+b^2}[/tex]

Where a and b are the coordinates of the vector. Replace a for 5 and b for -8:

[tex]\begin{gathered} ||v||=\sqrt{5^2+(-8)^2} \\ ||v||=\sqrt{25+64} \\ ||v||=\sqrt{89} \\ ||v||=9.43 \end{gathered}[/tex]

Now, substract 3 from ||v||:

[tex]||v||-3=6.43[/tex]

The answer is 6.43.

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