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A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
Find a Vector that has the same Direction as −6, 6, 6 but has Length 6.
We will be using the concept of scaling and the similarity of the vectors.
Answer: A vector with the same direction as (−6, 6, 6) but has length 6 is (−6/√3, 6/√3, 6/√3).
Let's solve this step by step.
Explanation:
Given:
\(A_{0}\) = (−6, 6, 6)
Let \(A_{1}\) be the vector in the same direction as \(A_{0}\) but with length 6.
Thus, \(A_{1}\) = (−6u, 6u, 6u)
The length of a vector with coordinates (−6u, 6u, 6u) is equal to √(36 u2 + 36 u2 + 36 u2) = u ⋅ √108
Given that length should be 6 units.
⇒ u ⋅ √108 = 6
u = 6/6√3 = 1/√3
\(A_{1}\) = (−6 × 1/√3, 6 × 1/√3, 6 × 1/√3)
\(A_{1}\) = (−6/√3, 6/√3, 6/√3)
Hence, a vector with the same direction as (−6, 6, 6) but has length 6 is (−6/√3, 6/√3, 6/√3).
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