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1.4.7 Sigma notation (A-level only)

Card 1 of 20

Expand ∑r=15r2\displaystyle \sum_{r=1}^{5}r^2r=1∑5​r2.

A

∑r=110(3r+2)\displaystyle \sum_{r=1}^{10}(3r+2)r=1∑10​(3r+2)

B

Its value is unchanged because the index is a placeholder.

C

12+22+32+42+521^2+2^2+3^2+4^2+5^212+22+32+42+52

D

It should produce the first term of the series.

Card 1 of 20

1.4.7 Sigma notation (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /1.4.7 Sigma notation (A-level only)

20 flashcards on OCR A Level Maths 1.4.7 Sigma notation (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards