Find the unit vector having the same direction as v = 2i – 3j.
Question 1.9: Find the unit vector having the same direction as v = 2i - 3...
Here |\mathbf{v}|=\sqrt{4+9}=\sqrt{13}, so \mathbf{u}=\mathbf{v} /|\mathbf{v}|=(2 / \sqrt{13}) \mathbf{i}-(3 / \sqrt{13}) \mathbf{j} is the required unit vector.
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