If →a1,→b1,→c1 is the reciprocal system of vector triad of →a, – InterviewSolution

1.	If →a1,→b1,→c1 is the reciprocal system of vector triad of →a,→b,→c, then (→a+→b)⋅→a1+(→b+→c)⋅→b1+(→c+→a)⋅→c1=
Answer» If $^{1},^{1},^{1}$ is the reciprocal system of vector triad of $\to a, \to b, \to c$ , then $(\to a + \to b) \cdot^{1} + (\to b + \to c) \cdot^{1} + (\to c + \to a) \cdot^{1} =$

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