NCERT Example 15 - Vector Algebra

Question: If a = 5 i-hat - j-hat - 3 k-hat and b = i-hat + 3 j-hat - 5 k-hat, show that (a+b) and (a-b) are perpendicular.

Answer: Shown as required.

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

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