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Question

Which of the following is true about the 2nd slant row of a pascal's triangle?
  1. As we go down, elements keep increasing by 1.
  2. As we go down, elements keep doubling.
  3. Every element is equal.
  4. As we go down, the difference between elements keeps increasing by 1.


Solution

The correct option is A As we go down, elements keep increasing by 1.
2rd slant row of a pascal's triangle = 1, 2, 3, 4, 5, 6, ...
As you observe, the difference between the elements = 1, 1, 1, 1, 1, ...
So, as we go down, the elements keep increasing by 1.

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