Duration: 2:16

73 views

2

Three vectors \( \vec{A}, \vec{B} \) and \( \vec{C} \) add up to zero. Find which is false.
(A) \( (\vec{A} \times \vec{B}) \times \vec{C} \) is not zero unless \( \vec{B}, \vec{C} \) are parallel
(B) \( (\vec{A} \times \vec{B}) \cdot \vec{C} \) is not zero unless \( \vec{B}, \vec{C} \) are parallel
(C) If \( \vec{A}, \vec{B}, \vec{C} \) define a plane, \( (\vec{A} \times \vec{B} \times \vec{C}) \) is in that plane
(D) \( \vec{A} \times \vec{B}|\cdot \vec{C}=| \vec{A}|| \vec{B}|| \vec{C} \mid \rightarrow C^{2}=A^{2}+B^{2} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live