Functions (MCR3U) · Discrete Functions

Geometric Series

30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.

Start the 30 questions Curriculum: MCR3U-DF.4

Sample: the first question, solved

State the formula for the sum of the first n terms of a geometric series (r≠1).

📘 Worked solution
Sₙ=a(rⁿ−1)/(r−1).

And one from the hard end

"A factory's first-year output of a discontinued product line is 50000 units, projected to fall to 50% of the previous year's output every year thereafter, forever. Find the theoretical total lifetime output."

Solution shown after you try it in practice mode.

Work through all 30, easiest to hardest

Your Winny Score tracks you as the questions ramp up. Stuck on one? A real Winny Math tutor will walk you through it. First lesson free.

Start practicing