Finx the sum of coefficients of all the terms of the exapansin `(ax+y)^(n)`.

Finx the sum of coefficients of all the terms of the exapansin `(ax+y)^(n)`.
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Finx the sum of coefficients of all the terms of the exapansin `(ax+y)^(n)`. A. `""^(n)C_(0)+""^(n)C_(1)^ ... ""^(n)C_(n)` C. `2^(n)` D. None of these
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