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Step-by-step explanation:
3+√2/3-√2×3+√2/3+√2
=(3+√2)^2/(3)^2-(√2)^2
=3^2+(√2)^2+2(3)(√2)/9-2
=9+2+6√2/7
=11+6√2/7
=a+b√2
so,a=11/7
b=6√2/7
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