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Question 257 of 379MediumMCQ
Let a⃗,b⃗,c⃗\vec a,\vec b,\vec c be unit vectors with a⃗+b⃗+c⃗=0⃗\vec a+\vec b+\vec c=\vec 0. If λ=a⃗⋅b⃗+b⃗⋅c⃗+c⃗⋅a⃗\lambda=\vec a\cdot\vec b+\vec b\cdot\vec c+\vec c\cdot\vec a and d⃗=a⃗×b⃗+b⃗×c⃗+c⃗×a⃗\vec d=\vec a\times\vec b+\vec b\times\vec c+\vec c\times\vec a, the ordered pair (λ,d⃗)(\lambda,\vec d) is:
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