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(Solved): Let R be a commutative ring with unity, where a,binR,0_(R) be the zero element in R such that ainR ...



Let

R

be a commutative ring with unity, where

a,binR,0_(R)

be the zero element in

R

such that

ainR

is a unit and

b^(2)=0_(R)

. Then show that

a+binR

is also a unit in

R

.



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