यदि 3−13+1=a+b3" id="MathJax-Element-23-Frame" role="presentation" tabindex="0">\(\frac{{\sqrt 2 - 1}}{{\sqrt 2 + 1}} = a - b\sqrt 2 \) है, तो a2 + b2 का मान क्या3−13+1=a+b3" role="presentation" tabindex="0"> होगा?

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