if x-1/x=7 find x2+1/x2
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Answered by
2
your ans
given:-
x-1/x=7
to find
x2+1/x2
now apply the identity
(x-1/x)2=x2+1/x2-2
(7)2=x2-1/x2-2
49-2=x2+1/x2
47=x2+1/x2
given:-
x-1/x=7
to find
x2+1/x2
now apply the identity
(x-1/x)2=x2+1/x2-2
(7)2=x2-1/x2-2
49-2=x2+1/x2
47=x2+1/x2
Answered by
4
please find the answer down
sorry the answer is 47 but i wrote 37 sorry
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