1.a⃗,b⃗,c⃗,d⃗\vec{a}, \vec{b}, \vec{c}, \vec{d}a,b,c,d are coplanar vectors, then (a⃗×b⃗)×(c⃗×d⃗)(\vec{a} \times \vec{b}) \times (\vec{c} \times \vec{d})(a×b)×(c×d) is equal toa.000b.111c.a⃗\vec{a}ad.b⃗\vec{b}bLogin to continueOnly logged in users canattempt or see the solution.
