A reciprocal is the result you get upon reciprocating something,where to reciprocate is to calculate 1/x , with x the thing to bereciprocated. The reciprocal of 2 is 1/2, that
… of x 2 +376x is1/(x 2 +376x). The reciprocal of 1 is 1, and that of zerois undefined since x/0 is undefined for all x. Obviously if youstart with a fraction, the numerator and denominator switch: 1/(a/b) is the same as 1*(b/a)=b/a (MORE)