JEE Main & Advanced
Mathematics
Vector Algebra
Question Bank
Numerical Value Type Questions - Vector Algebra
question_answer
If \[|\vec{a}|\,=5,\,\,|\vec{b}|\,=4,\,\,|\vec{c}|\,=3\] and \[\vec{a}+\,\vec{b}+\,\vec{c}=0\] then the value of \[|\vec{a}\cdot \vec{b}\,+\vec{b}\cdot \vec{c}+\,\vec{c}\cdot \vec{a}|,\] is