#492 · Complex Analysis · Series & singularities

A radius of convergence

Find the radius of convergence of $n = 0 \sum \infty \frac{z ^{n}}{2 ^{n}}$ .

~3 minAnswer checked instantlySeries & singularities

Stuck? A gentle nudge

Something off?

Workspace

Your answer

Loading the math keyboard…

Type naturally — sqrt, pi, / and ^ become notation. Any equivalent form is accepted. Press Enter to check.