List of top Mathematics Questions on Product of Two Vectors asked in Assam CEE

If \(\vec a,\vec b,\vec c\) are three vectors such that \[ |\vec a|=a,\qquad |\vec b|=b,\qquad |\vec c|=c \] and each one of them is perpendicular to the sum of the other two, then \[ |\vec a+\vec b+\vec c| \] equals