Question

How many natural no lie between 11 square and 12 square

Answer 1

Answer:

There exists 22 natural number.

Step-by-step explanation:

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Answer 2

Answer:

22

Step-by-step explanation:

So First Of all Take out values of 11² and 12²...

${11}^{2} = 121$

${12}^{2} = 144$

Now , You just have to subtract 11² from 12² and subtract 1 from its difference...

144 - 121 -1

=22

Another method of doing this is using an identity

A²-B² = (a+b)(a-b)

you have to do is just to put 12 in place of a and 11 in place b and subtract 1 from it

a=12 and b=11

12²-11² -1

=(12+11)(12-11)-1

=(23)(1)-1

=23-1

=22

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