Crux Mathematicorum Vol. 46, No. 2 « v46, n1 indexv46, n3 » February, 2020 PageContents 49 MathemAttic: No. 12 49 Problems: MA56–MA60 53 Solutions: MA31–MA35 57 Problem Solving Vignettes: No. 10 — Shawn Godin 61 Olympiad Corner: No. 380 61 Problems: OC466–OC470 63 Solutions: OC441–OC445 70 Applications of the Riemann integral to find limits — Robert Bosch 77 Problems: 4511–4520 83 Solutions: 4461–4470 Read the issue below Download this issue (PDF) Crux Mathematicorum