Which series converges to ∫0x11+t3dt\int_0^x \frac{1}{1+t^3} dt∫0x1+t31dt?
∑n=0∞(−1)nx3n+13n+1\sum_{n=0}^{\infty} \frac{(-1)^n x^{3n+1}}{3n+1}∑n=0∞3n+1(−1)nx3n+1
∑n=0∞x3n+13n+1\sum_{n=0}^{\infty} \frac{x^{3n+1}}{3n+1}∑n=0∞3n+1x3n+1
∑n=0∞(−1)nx3n3n\sum_{n=0}^{\infty} \frac{(-1)^n x^{3n}}{3n}∑n=0∞3n(−1)nx3n
∑n=0∞x3n3n+1\sum_{n=0}^{\infty} \frac{x^{3n}}{3n+1}∑n=0∞3n+1x3n