हल करना sum n = 1 to ∞ (1/3) ^ n + 4 ^ (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

$$\sum_{n=1}^{\infty}(\frac{1}{3})^{n}+4^{1-n}$$