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If the angle A ,Ba n dC of a triangle ar...

If the angle `A ,Ba n dC` of a triangle are in an arithmetic propression and if `a , ba n dc` denote the lengths of the sides opposite to `A ,Ba n dC` respectively, then the value of the expression `a/csin2C+c/asin2A` is `1/2` (b) `(sqrt(3))/2` (c) `1` (d) `sqrt(3)`

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