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What is the 12th term of arithmetic progression 2 5 8 by using formula?

Published in Arithmetic Progression 2 mins read

The 12th term of the arithmetic progression 2, 5, 8 is 35.

Understanding Arithmetic Progressions

An arithmetic progression (AP) is a sequence of numbers where the difference between any two consecutive terms is constant. This constant difference is called the common difference. The formula to find the nth term of an AP is:

an = a + (n - 1)d

Where:

  • an is the nth term
  • a is the first term
  • n is the term number
  • d is the common difference

Applying the Formula

In the given arithmetic progression 2, 5, 8:

  • The first term (a) is 2.
  • The common difference (d) is 5 - 2 = 3.
  • We are looking for the 12th term, so n = 12.

Using the formula, we can calculate the 12th term:

a12 = 2 + (12 - 1) 3
a12 = 2 + (11)
3
a12 = 2 + 33
a12 = 35

Reference Verification

According to the provided reference, the 12th term of the given arithmetic progression is 35. This confirms our calculation. The reference indicates:

Here, the first term (a) is 2, the common difference (d) is 3, and we want to find the 12th term (n = 12). Therefore, the 12th term of the given arithmetic progression is 35.

Conclusion

Therefore, by using the arithmetic progression formula and verifying with the reference, the 12th term of the arithmetic progression 2, 5, 8 is indeed 35.

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