Question:
\(\ \left|\ \vec{i}-2\vec{j}+2\vec{k}\ \right|=\) ?
\(\ \left|\ \vec{i}-2\vec{j}+2\vec{k}\ \right|=\) ?
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Length of \((a,b,c)\) is \(\sqrt{a^{2}+b^{2}+c^{2}}\).
Updated On: Oct 17, 2025
- \(3\)
- \(6\)
- \(7\)
- \(5\)
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The Correct Option is A
Solution and Explanation
Magnitude of \((1,-2,2)\):
\[
\sqrt{1^{2}+(-2)^{2}+2^{2}}=\sqrt{1+4+4}=\sqrt{9}=3.
\]
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