Question

if a = 6 - under root 35 , find the value of a^2+1/a^2

Answer 1

Answer:

142

Step-by-step explanation:

a = 6-√35

1/a = 1/ 6-√35 = 6+√35

(a+1/a)² = a²+1/a²+2

12² = a²+1/a² +2

142 = a²+1/a²

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