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3^19
9 9 9 9 + 9 + 9 there is no formula of addition of exponents values _ _ 9 9 | 2 | We know 9 = | 3 | therefore |_ _| _ _ 9 _ _ 9 _ _9 | 2 | | 2 | | 2 | = | 3 | + | 3 | + | 3 | |_ _| |_ _| |_ _| 18 18 18 = 3 + 3 + 3 _ _ 18 | | = 3 | 1 + 1 + 1 | |_ _| 18 = 3 . 3 19 = 3
1/3 -2/3 2n - 2n -------------- = ? -2/3 2n
_____________________ / _____________ / / ____ / / / 2 / 4 / 4 . / 4 / \/ \/ / -------------------- / 3 \/ 2