Q28 of 32 Page 20

If a = 5 + 2√6 and b = 1/a then what will be the value of a2 + b2 ?

Given: a = 5 + 2√6




Solving RHS,




since, (a + b)2 = a2 + b2 + 2ab


Rationalising the second part, i.e.,








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