Question 11 - A-Level Maths

Exam Board	OCR MEI
Module	Paper 3 (Paper 3)
Year	2023
Session	June
Topic	Sequences and series, recurrence and convergence

Evaluate \(\sum _ { r = 1 } ^ { 5 } r ^ { 2 }\).
Show that Euler's approximate formula, as given in line 13, gives the exact value of \(\sum _ { r = 1 } ^ { 5 } r ^ { 2 }\).