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A5nayailyton
A5nayailyton A5nayailyton
  • 04-07-2016
  • Mathematics
Answered

find a20, the 20th term, of the arithmetic sequence 1, 3, 5, 7, 9, …

Verified Answer :

Ckaranja
Ckaranja Ckaranja
  • 04-07-2016

a=1
common difference d=3-1=2
nth term= a+(n-1)d
2oth term= 1+(20-1)2
=1+38
=39

Answer Link
erolkayacan
erolkayacan erolkayacan
  • 17-01-2020

Answer:

The answer is 39.

Step-by-step explanation:

The first term of arithmetic sequence is 1:

\(a_{1}=1\)

and the formula of arithmetic sequence is:

\(a_{n}=2*n-1\)

20th term of the arithmetic sequence will be:

\(a_{20}=2*20-1=39\)

Answer Link

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