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Find the unit vector in the direction of the sum of the vectors, a = 2i + 2j - 5k and vector b = 2i + j + 3k

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Find the unit vector in the direction of the sum of the vectors, a = 2i + 2j - 5k and vector b = 2i + j + 3k

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The sum of the given vectors is vector(a + b) ( = vector c, say) = 4i + 3j - 2k

and |vector c| = √(42 + 32 + (-2)2) = √29

Thus, the required unit vector is

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