if x=9+4root 5 find value of x sq. +1/x sq.
abhi569:
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Hii, I hope this will help you
x=9+4√5
1/x=9-4√5. (By rationalization)
x²+1/x²
=81+(16*5)+72√5+81+(16*5)-72√5
=162+80+80
162+160
=322
x=9+4√5
1/x=9-4√5. (By rationalization)
x²+1/x²
=81+(16*5)+72√5+81+(16*5)-72√5
=162+80+80
162+160
=322
What plz don't repprt
What is the answer
If this is wrong, what is your answer
160
Really, from book
my ans.
See my new answer
right ans.
well done
But bro my new answer is wrong
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