SOLUTION: The magnitude of vector λa is 5. Find the value of λ, if: a = (−6, 8)

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Question 1156487: The magnitude of vector λa is 5. Find the value of λ, if:
a = (−6, 8)
Answer by ikleyn(52926) About Me  (Show Source):
You can put this solution on YOUR website!
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The magnitude of the vector a is  ||a|| = sqrt%28%28-6%29%5E2%2B+8%5E2%29 = sqrt%2836%2B64%29 = 10.


Therefore,  λ = 5%2F10 = 0.5.    ANSWER