Maths — Sequences & Series
Arithmetic and geometric progressions.
Rendering…
Make it your own.
a_n = a_1 + (n-1)d
S_n = \frac{n}{2}(a_1 + a_n)
a_n = a_1 r^{\,n-1}
S_\infty = \frac{a_1}{1 - r}, \quad |r| < 1
Arithmetic and geometric progressions.
a_n = a_1 + (n-1)d
S_n = \frac{n}{2}(a_1 + a_n)
a_n = a_1 r^{\,n-1}
S_\infty = \frac{a_1}{1 - r}, \quad |r| < 1