find the value 0. If x= 3+ 58 of g ...
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find the value 0. If x= 3+ 58 of g 2 + L * 2

11th - 12th Class
Maths
Solution
94
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( begin{aligned} x &=3+sqrt{8} frac{1}{x} &=frac{1}{3+sqrt{8}} times frac{3-sqrt{8}}{3 sqrt{8}}=frac{3-sqrt{8}}{(3)^{2}-8} x+1 / x^{2} &=6 Rightarrow x^{2}+1 / x^{2} &=(x+1 / x)^{2}-2 &=36-2=84 end{aligned} )
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