1.

Three vectors vec(a),vec(b),vec(c) are such that vec(a)xxvec(b)=4(vec(a)xxvec(c))and|vec(a)|=|vec(b)|=1and|vec(c)|=(1)/(4). If the angle between vec(b)andvec(c)" is "(pi)/(3), then vec(b) is

Answer»

`VEC(a)+4vec(C)`
`vec(a)-4vec(c)`
`4vec(c)-vec(a)`
`2vec(c)-vec(a)`

ANSWER :A::C


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