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I have a liitle problem with solving this problem and i am currently in Grade:9. The problem is as follows:
If x=9-4*(5)^1/2 then find the value of :
(x)^1/2-1/(x)^1/2 ;[(n)^1/2 which is Root:n)].
Thank You in advance Sir/Ma'am.
Also i want to know if i have any doubts in the problem solving, how can i approach to you, imean how can i consult you back?
Dear Neel,
Ans:- √x - 1/√x=(√(√x - 1/√x))²
=√(x+1/x- 2)
Putting the values and using 9-4√5 =1/(9+4√5) we get. The ans is=4
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Regards,
Askiitians Experts
SOUMYAJIT IIT_KHARAGPUR
√x - 1/√x=(√(√x - 1/√x))²
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