#801 · Algebra · Sequences & series

Sum of an arithmetic series

Find the sum of the first 20 terms of the arithmetic progression $2, 3 \frac{1}{4}, 4 \frac{1}{2}, \dots$ .

~2 minAnswer checked instantlyarithmetic progressionsum

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. IV. Arithmetical Progression, Examples IV.a, No. 1

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.