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# Induction Mathematical Proof and Odd and Even Powers

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Show that any positive integral power of (√2 - 1) can be written in the form √N -
√(N-1) , where N is a positive integer.
Hint: Use mathematical induction and consider separately the odd and even powers of (√2 - 1).

We need to prove the following statement.

Statement : For any positive n, (√2 - 1)&#8319; = √N - √(N-1) for some positive integer N.
Note: N depends on n.

Before we prove the above statement, we will prove a theorem below.

Please see attachment for full question.

##### Solution Summary

This is a proof regarding integral powers. The induction mathematical proof and odd and even powers.

##### Solution Preview

Because,
(sqrt(2) - 1)^n = sqrt(2a^2) - ...

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###### Education
• MSc , Pune University, India
• PhD (IP), Pune University, India
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