if x(sqr)+1/x(sqr) =a and x-1/x=b, where a and b are positive real, then minimum possible value which a/b can have,

A)2 root2 B) 2 C)root 2 D)4 plzz solve!!!!!!!!!!!!!!!!!!!!!!!!!

Question

if x(sqr)+1/x(sqr) =a and x-1/x=b, where a and b are positive real, then minimum possible value which a/b can have, A)2 root2 B) 2 C)root 2 D)4 plzz solve!!!!!!!!!!!!!!!!!!!!!!!!!

vikas askiitian expert · Answer

x 2 + 1/x 2 = a (x - 1/x) 2 + 2 = a ...............1 x-1/x = b a/b = (x-1/x) + 2/(x-1/x) put , x-1/x = t then a/b = t + 2/t .............2 now dufferentiating this eq wrt t & putting it to 0 we get t = + or - root2 so , at t = root2 , a/b = root2 + 2/root2 = 2root2 ,this is the minimum value approve if u like my ans

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if x(sqr)+1/x(sqr) =a and x-1/x=b, where a and b are positive real, then minimum possible value which a/b can have, A)2 root2 B) 2 C)root 2 D)4 plzz solve!!!!!!!!!!!!!!!!!!!!!!!!!

if x(sqr)+1/x(sqr) =a and x-1/x=b, where a and b are positive real, then minimum possible value which a/b can have,

A)2 root2 B) 2 C)root 2 D)4 plzz solve!!!!!!!!!!!!!!!!!!!!!!!!!

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if x(sqr)+1/x(sqr) =a and x-1/x=b, where a and b are positive real, then minimum possible value which a/b can have, A)2 root2 B) 2 C)root 2 D)4 plzz solve!!!!!!!!!!!!!!!!!!!!!!!!!

if x(sqr)+1/x(sqr) =a and x-1/x=b, where a and b are positive real, then minimum possible value which a/b can have, A)2 root2 B) 2 C)root 2 D)4 plzz solve!!!!!!!!!!!!!!!!!!!!!!!!!

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if x(sqr)+1/x(sqr) =a and x-1/x=b, where a and b are positive real, then minimum possible value which a/b can have,

A)2 root2 B) 2 C)root 2 D)4 plzz solve!!!!!!!!!!!!!!!!!!!!!!!!!