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Q.The vectors a⃗\vec{a}, b⃗\vec{b}, c⃗\vec{c} are coplanar if

a
a⃗⋅(b⃗×c⃗)=0\vec{a} \cdot (\vec{b} \times \vec{c}) = 0
b
a⃗⋅b⃗=0\vec{a} \cdot \vec{b} = 0
c
a⃗×b⃗=c⃗\vec{a} \times \vec{b} = \vec{c}
d
a⃗+b⃗+c⃗=0⃗\vec{a} + \vec{b} + \vec{c} = \vec{0}

Correct Answer: Option A

The correct solution involves applying the fundamental concept to derive the final value step by step...

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