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12. यदि 10^{2 y}-25 \text { at } 10^{-y}, तो 107 बराबर है--\begin{array}{lll}{\text { (A) } \frac{1}{5}} & {\text { (B) } \frac{1}{50}} & {\text { (C) } \frac{1}{625}}\end{array} |
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Answer» Thanks |
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