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Addition of Vectors

Find the unit...

Question

Find the unit vector perpendicular to the plane $\to r . (2^i +^j + 2^k) = 5$

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Solution

$\begin{matrix} \to r . (^2 +^j + 2^k) = 5 u n i t v e c t o r p e r p e n d i c u l a r t o t h e p l a n e \frac{2^i +^j +^2}{3} \end{matrix}$

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