ID: Class: 12 Subject: Math Topic: Vector Algebra Type: Mcq Year: 2025

Question:

The respective values of \(|\vec{a}|\) and \(|\vec{b}|\), if given \((\vec{a}-\vec{b})\cdot(\vec{a}+\vec{b})=512\) and \(|\vec{a}|=3|\vec{b}|\), are:
  • A. 48 and 16
  • B. 3 and 1
  • C. 24 and 8
  • D. 6 and 2