(x to power 1/3) - (x to power 1/9)=60 We have to find out the value of x ??

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srinivas_4449

  • Sep 25th, 2006
 

(X)^1/3 -  (X)1^9=60
approach let (X)^1/3 =t
so  t-(t)^1/3=60
so now hit and trial
the number which satisfies it is 64
so t=64
so (X)^(1/3)=64 

dwinfo

  • Sep 28th, 2006
 

well the appropriate answer to the Q is the value of X

that is X = 262144

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ragav

  • Dec 12th, 2007
 

Let x to power 1/9 = t
then,
t^3- t = 60
t^3 >> t (except for t=1)

therefore,
t^3 is approximately = 60

Therefore , t = 4 and x=4^9= 262144

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