Convergence of a series with Weierstrass criterion

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I want to show that

$$\sum_{n=1}^\infty f_n =\sum_{n=1}^\infty \log\left(1+\frac{x}{n^2}\right)$$

converges on $X=[0, 1]$

My approach was

$$\log\left(1+\frac{x}{n^2}\right) \le \log\left(1+\frac{1}{n^2}\right) \le \log2$$

so

$$\Vert f_n\Vert_{\infty,X} \le \log2 \lt \infty$$

and we know that

$$\lim_{n\to \infty}\frac{1}{n^2} \to 0$$

so

$$\lim_{n\to \infty} \log\left(1+\frac{1}{n^2}\right) \to \log1=0$$

and lets consider $S_i$ the partial sum from $n=1$ to $i$

we have $\forall \epsilon \gt 0, \exists N \in \Bbb{N}$ such that $\forall n,m \gt N$ and $(m \gt n)$

$$\Vert S_m - S_n\Vert_{\infty,X} \lt \epsilon$$

So the serie is Cauchy and we can conclude with Weierstrass criterion that it is uniformly convergent on $X$.

I am just wondering if I made a mistake since I just begun in analysis and I'm never sure.