if a+1/a =2,(a×a)+1/(a×a).Find a-1/a.
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a+1/a=2
a²+1/a²=(a+1/a)²-2.a.1/a
=2²-2
=2
also
a²+1/a²=(a-1/a)²+2.a.1/a
or,2=(a-1/a)²+2
•°•a-1/a=0
Answered by
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Answer:
Step-by-step explanation:
A+1/a=2
A+1=2a
1 =2a-a
A=1
A²+1÷ a+a
(1)²+1 ÷1+1
1+1/1+1 = 2/2 = 1
A-1/a
1-1/1
=1-1=0
Hope it works
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