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Q.If a⃗×b⃗=c⃗×d⃗\vec{a} \times \vec{b} = \vec{c} \times \vec{d} and a⃗×c⃗=b⃗×d⃗\vec{a} \times \vec{c} = \vec{b} \times \vec{d}, then

a
a⃗−d⃗\vec{a} - \vec{d} is parallel to b⃗−c⃗\vec{b} - \vec{c}
b
a⃗−b⃗\vec{a} - \vec{b} is parallel to c⃗−d⃗\vec{c} - \vec{d}
c
a⃗=b⃗\vec{a} = \vec{b}
d
c⃗=d⃗\vec{c} = \vec{d}

Correct Answer: Option A

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

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