2 years ago

Let u = {5,-12} and let c = -3. What is ll cu ll

1 answer:

3 0

Answer:

D) 39

Step-by-step explanation:

$||\text{c}\bold{u}||=||3\langle5,12\rangle||=||\langle3*5,3*12\rangle||=||\langle15,36\rangle||=\sqrt{15^2+36^2}=\sqrt{225+1296}=\sqrt{1521}=39$

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