The 12th term of the series1+x + 1+2x + 1 + ....... xxx

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The 12th term of the series 1 + x + 1 + 2x + 1 + .......
x x x

1. 11x + 1
  x
2. 12x + 1
  x
3. x + 12
  x
4. x + 11
  x

Correct Option: A

As per the given question ,

First term =	x × 0 + 1
	x

First term =	x [1 - 1] + 1
	x

Second term =	x × 1 + 1
	x

Second term =	x (2 - 1) + 1
	x

Third term =	x × 2 + 1
	x

Third term =	x(3 - 1) + 1
	x

∴ 12th term =	x(12 - 1) + 1
	x

Hence , 12th term =	11x + 1
	x