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Let x=5^((log5 2+log5 3)) If 'd' denotes...

Let `x=5^((log_5 2+log_5 3))` If 'd' denotes the number of digits before decimal in `x^30` and 'c' denotes the number of naughts after decimal before a significant digit starts in `x^(-20),` then find the value of `(d-c).`

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