if x= (2+root 3) find the value of (x²+1/x²)
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· If x= 2+sqrt3 then 1/x=2-sqrt3 (by rationaliztion) then (x+1/x)^2 = X^2+(1/X)^ 2 +2*x*(1/X) that is (2+sqrt3 +2-sqrt3)^2=x^2 +(1/x)^2+2 4^2 -2=x^2+(1/x)^2 i.e ...
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........hope it will help you
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Kshitijydv:
is my answer is right
-12.27
or this -12.27 coming
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