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Unit Vectors

Give an examp...

Question

Give an example of vectors $\to a, \to b$ such that $| \to a | = \to b |$ but $\to a \neq \to b$ .

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Solution

As we have,

$| \to a | = | - \to a |$ .

So we can take for $\to a \neq \to 0$ , $\to b = - \to a$ .

Then $\to b \neq \to a$ although $| \to b | = | \to a |$ .

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