It is found that |A+B|=|A|,This necessarily implies.

1.	It is found that \|A+B\|=\|A\|,This necessarily implies.
Answer» `VECB = 0 ` `VECA, vecB` are antiparallel `vecA, vecB` are perpendicular `vecA * vecB le 0 ` Solution :If `\|vecA + vecB\| = \|vecA\|`, then EITHER `vecB = - or vecB = -2vecA.` Both are SATISFIED when `vecA and vecB` are anti-parallel.

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