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Questions  >>  JEEMAIN and NEET  >>  Mathematics  >>  Class12  >>  Vector Algebra
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A vector $a\hat i+b\hat j+c\hat k$ is such that its magnitude is $ |a|+|b|+|c|$. This is possible only if

$(a)\:a=b=c=0\:\:\qquad\:\:(b)\:any\:two\:of\:a,b\:and\:c\:are\:zero\:\:\qquad\:\:(c)\:any\:one\:of\:a,b,c\:is\:zero\:\:\qquad\:\:(d)\:a+b+c=0 $

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