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Answer the following.
If and then the value of will be:
If $\vec{a} = 3\hat{i} - 2\hat{j} + \hat{k}$ and $\vec{b} = 2\hat{i} - 4\hat{j} - 3\hat{k}$ then the value of $|\vec{a} - 2\vec{b}|$ will be:
- (a)$\sqrt{85}$
- (b)$\sqrt{86}$
- (c)$\sqrt{87}$
- (d)$\sqrt{88}$
Answer
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From ISC 2024 Mathematics Paper 1, question 15(i).
Check your working with the 3D geometry and vectors calculator: points, vectors, lines and planes: distances, angles, foot and image, shortest distance, intersections.