NCERT Miscellaneous Exercise Q6 - Vector Algebra

Question: Find a vector of magnitude 5 parallel to the resultant of a = 2i-hat+3j-hat-k-hat and b = i-hat-2j-hat+k-hat.

Answer: ± (15 i-hat + 5 j-hat)/sqrt(10) [= ±5(3i-hat+j-hat)/sqrt(10)].

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

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