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A vector r coplanar with non-collinear vectors a and b can be written uniquely as?
Aa x b
Bta only
Ct1 a + t2 b
Dt(a . b)
Answer & Solution
Correct answer: C. t1 a + t2 b
Coplanarity with two non-collinear vectors means r is a linear combination with unique scalars t1 and t2.
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