12.If `veca & vecb`,are unit vectors such that `lveca - vecb| =sqrt3`, then find `|veca +vecb
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To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW 12.If `veca & vecb`,are unit vectors such that `lveca - vecb| =sqrt3`, then find `|veca +vecb|`
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