Sum of the series \(S=\sum_{r=0}^n \frac{3^{r+4}\left({ }^n C_r\right)}{{ }^{r+4} C_4}+\sum_{r=0.... VIDEO
Sum of the series \(S=\sum_{r=0}^n \frac{3^{r+4}\left({ }^n C_r\right)}{{ }^{r+4} C_4}+\sum_{r=0}^3 \frac{{ }^{n+4} C_r 3^r}{{ }^{n+4} C_4}\) is 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live
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