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What is a reciprocal of a number?

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Jim H · Alan P.

Mar 22, 2015

The reciprocal of a number, #a#, is a number, #b# such that
#a xx b = 1#

For Real numbers, other than 0, the reciprocal of #a# is #1/a#.

(The number #0# does not have a reciprocal because #0xxb=1# has no solution. #0xxn=0# for all real and complex #n#.)

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