NCERT Exercise 10.2 Q9 - Vector Algebra

Question: For a = 2 i-hat - j-hat + 2 k-hat and b = -i-hat + j-hat - k-hat, find the unit vector in the direction of a + b.

Answer: (i-hat + k-hat)/sqrt(2).

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

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