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If |bar(a)+bar(b)| = |bar(a)-bar(b)| the...

If `|bar(a)+bar(b)| = |bar(a)-bar(b)|` then find the angle between `bar(a) and bar(b)`.

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The correct Answer is:
`90^(@)`
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SRISIRI PUBLICATION-SOLVED MODEL PAPER-2-SOLVED MODEL PAPER-2(MATHS-1B)
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