What operation turns a sequence into a series?
A
∑r=abur+∑r=abvr\displaystyle\sum_{r=a}^{b}u_r+\sum_{r=a}^{b}v_rr=a∑bur+r=a∑bvr.
B
r=1,2,3,4,5r=1,2,3,4,5r=1,2,3,4,5 - both limits are included.
C
∑r=16(3r+1)\displaystyle\sum_{r=1}^{6}(3r+1)r=1∑6(3r+1).
D
Adding its terms.
3.4.3 Sequences and Series (A-level only) Flashcards
Flashcards for WJEC A Level Maths 3.4.3 Sequences and Series (A-level only), covering the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4. 20 cards, matched to the WJEC A Level Maths (1300QS) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.