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If a1 and a2 are two non collinear unit vectors and if mod of a1+a2=root of 3 then value of (a1-a2). (2a1+a2)

Answer» If a1 and a2 are two non collinear unit vectors and if mod of a1+a2=root of 3 then value of (a1-a2). (2a1+a2)


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