AGP: sum a + (a+d)r + (a+2d)r^2 + (S = a/(1-r) + dr/(1-r)^2, |r|<1)
jee-mainjee-advanced
S = a/(1-r) + dr/(1-r)^2, |r|<1
What each symbol means
| Symbol | What it stands for |
|---|---|
| S | Infinite sum |
| a | Starting constant part |
| d | AP step on coefficients |
| r | GP ratio |
When to use this
Standard infinite AGP with |r|<1.