Menyelesaikan 3 ^ (n - 1) * 3 ^ (1 - n) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$3^{n-1}\times3^{1-n}$$