Math, asked by pratikchate36023, 1 year ago

answer this question

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Answered by hari123451

0

it's option 'd' .

the formula is..

a¹a²+b¹b²+c¹c²/√a¹^2+b¹^²+c¹^²×√a²^²+b²^²+c²^². hope it helps u

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