if a+1÷a=5 so a2+1÷a2=?
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hey your ans is here
_________
given:-
a+1/a=5
to find:-
a2+1/a2
now apply
(a+1/a)2=a2+1/a2+2×a×1/a [ a gets cancelled]
now
(5)2=a2+1/a2+2
25-2=a2+1/a2
23=a2+1/a2
_________
_________
given:-
a+1/a=5
to find:-
a2+1/a2
now apply
(a+1/a)2=a2+1/a2+2×a×1/a [ a gets cancelled]
now
(5)2=a2+1/a2+2
25-2=a2+1/a2
23=a2+1/a2
_________
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1
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