Q) Find the value of a & b if √11 - √7/√11 + √7 = a - √77 b ( / is divide, √ is root. )
Q) If a = √3 - √2 / √3 + √2 & b = √3 + √2 / √3 - √2
Find the value of a2 + b2 - 5ab.
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