if x = 3 + 2 root 2 then value of root x + 1/ root x =
if x = 3 + 2 root 2 then value of root x + 1/ root x =
ra , 10 Years ago
Grade 9
Algebra> if x = 3 + 2 root 2 then value of root x ...
2 AnswersAkshay
3+rt2 = (1+rt2)2, hope that will help
ATB
ATB
Manoj
1/x=1/3+^2*3-2^2/3-2^2=3-2^2/(3)^2-(2^2)^2=3-2^2/9-8=3-2^2.
(^x-1/^x)^2=x-1/x+2=(3+2^2)+(3-2^2)+2=8.
So,(^x-1/^x)^2=^8-2^2=2^2
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