NCERT Example 5 - Vector Algebra

Question: Let a = i-hat + 2 j-hat and b = 2 i-hat + j-hat. Is |a| = |b|? Are a and b equal?

Answer: |a| = |b| = sqrt(5), but a and b are not equal.

Full step-by-step NCERT solution with diagrams on Something by Zero.

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