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Vectors

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Question 11

In triangle PQRPQRPQR, PQ⃗=3i−4j+2k\vec{PQ} = 3\mathbf{i} - 4\mathbf{j} + 2\mathbf{k}PQ​=3i−4j+2k, PR⃗=7i+j−3k\vec{PR} = 7\mathbf{i} + \mathbf{j} - 3\mathbf{k}PR=7i+j−3k

a.

Find the vector QR⃗\vec{QR}QR​

[3]
b.

Find the length of the line PQPQPQ

[3]

Vectors Questions

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