MCQ
यदि $(\vec{a} \times \vec{b})^2+(\vec{a} \cdot \vec{b})^2=144$ और $|\vec{a}|=4$, तब $|\vec{b}|=$
  • A
    16
  • B
    8
  • 3
  • D
    12

Answer

Correct option: C.
3
C

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