Vector Algebra
Oswaal
CBSE
Grade 12
Question:
Find the area of parallelogram whose adjacent sides are $\vec{a} = 3\hat{i} + \hat{j} + 4\hat{k}$ and $\vec{b} = \hat{i} - \hat{j} + \hat{k}$.
Step-by-Step Solution
Key Concept: Area = |a x b| = \sqrt{42} sq units.
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Correct Answer:
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