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1/n^2+1/n=1/2n^2
We move all terms to the left:
1/n^2+1/n-(1/2n^2)=0
Domain of the equation: n^2!=0
n^2!=0/
n^2!=√0
n!=0
n∈R
Domain of the equation: n!=0
n∈R
Domain of the equation: 2n^2)!=0We get rid of parentheses
n!=0/1
n!=0
n∈R
1/n^2+1/n-1/2n^2=0
We calculate fractions
We do not support enpression: n^5
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