JEE Main & Advanced
Mathematics
Vector Algebra
Question Bank
Scaler or Dot product of two vectors and its application
question_answer
If the vectors \[a\mathbf{i}+2\mathbf{j}+3\mathbf{k}\] and \[-\mathbf{i}+5\mathbf{j}+a\mathbf{k}\] are perpendicular to each other, then \[a=\] [MP PET 1996]