Card 1 of 21
Linear sigma result: ∑r=1nr=\displaystyle \sum_{r=1}^{n}r=r=1∑nr= [...]\text{[...]}[...].
A
The area under the curve using nnn rectangles.
B
73\boldsymbol{\frac73}37
C
Linear sigma result: ∑r=1nr=\displaystyle \sum_{r=1}^{n}r=r=1∑nr= n(n+1)2\boxed{\displaystyle \frac{n(n+1)}{2}}2n(n+1).
D
Both approach the same definite integral as Δx→0\Delta x\to0Δx→0.
Card 1 of 21
1.9.25 Integration as the limit of a sum (A-level only) Flashcards
21 flashcards on OCR (MEI) A Level Maths 1.9.25 Integration as the limit of a sum (A-level only): the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.