Math, asked by ipsha2124, 7 months ago

if the 15th term of an ap is 3 more than twice its 7th term. if the 1pth term of the ap is 41. find the 20th term

Answers

Answered by Anonymous

0

Answer:

a+14d=2(a+6d)+3

⇒a-2d+3=0 ...(i)

again

a+9d=41 (ii)

subtracting i from ii

11d=44

⇒d=4

hence from ii

a=5

hence nth term = 5+ (n-1) x4

=4n+1

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