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Question

If a and b are the roots of the equation, x2 – 6x + 1 = 0, then the value of a2 + b2 is​ __

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Solution

Step 1:- For, x2 – 6x + 1 = 0, sum of roots = 6= a+b and product of roots = ab =1

Step 2:- a2 + b2 = (a+b)2 – 2ab

Step 3:- a2 + b2 = 62 – 2(1) = 36 - 2 =34


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