what is partial fraction .please give me step by step answer
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1/2n(2n+1)=A/2n+B/2n+1
1/2n(2n+1) =A(2n+1)+B(2n)/2n(2n+1)
1=(A+B)2n+A
By Comparing coefficients A=1
(A+B)2=0
A+B=0
B=-1
1/2n(2n+1)=1/(2n) -1/(2n+1)
1/2n(2n+1) =A(2n+1)+B(2n)/2n(2n+1)
1=(A+B)2n+A
By Comparing coefficients A=1
(A+B)2=0
A+B=0
B=-1
1/2n(2n+1)=1/(2n) -1/(2n+1)
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