If veca, vecb,vecc are unit vectors such...

If `veca, vecb,vecc` are unit vectors such that `veca` is perpendicular to the plane of `vecb, vecc` and the angle between `vecb,vecc` is `pi/3`, then `|veca+vecb+vecc|=`

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If veca,vecb,vecc are unit vectors such that veca is perpendicular to vecb and vecc and |veca+vecb+vecc|=1 then the angle between vecb and vecc is (A) pi/2 (B) pi (C) 0 (D) (2pi)/3

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AAKASH INSTITUTE ENGLISH-VECTOR ALGEBRA-ASSIGNMENT (SECTION-B)

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