Math, asked by komalbhadane1983, 6 months ago

a=10, d=3, find S20

Answers

Answered by Z3US

1

Answer:

S 20 = [2a +(n-1) d]

=[2×10+ (20-1) 3]

20+19×3

60+19

= 79

please mark as brainlist answer

Answered by simadevi9125

0

Step-by-step explanation:

hope it will be helpful to you

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