Math, asked by pritichandbelkhede11, 4 months ago

what is the first term of an A.P whose third term is 440and the common difference-20?

Answers

Answered by 2005amirtha

4

a=480

Step-by-step explanation:

given: 3rd term = A3= a+2d = 440

d = -20

a+2(-20)=440

a+(-40)=440

a=440+40

a=480

hence the first term of the ap is 480

(hope it is helpful for u )

Answered by lakxmi

2

Answer:

a=480

Step-by-step explanation:

common difference (d) = -20

3rd term = 440

a+2d =440

a-2*20=440

a= 440+40

a= 480

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