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सरल करके घातांकीय रूप में लिखिएः (उदाह...

सरल करके घातांकीय रूप में लिखिएः
(उदाहरण के लिए `11^(6)-:11^(2)=11^(4)`)
(i) `2^(9)-:2^(3)` (ii) `10^(8)-:10^(4)`
(iii) `9^(11)-:9^(7)` (iv) `20^(15)-:20^(13)`
(v) `7^(13)-:7^(10)`

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