4Z 



It may not be amiss to observe, that when any quanti- 

 ty is divided by itself, the quotient will be unity, or i j 

 because any thing contains itself once : thus x—x gives i, 



and ^ 2ab divided by y/ 2ab\ gives i. 



Note i. 51? divide a?iy power by another of the same 

 root ; subtract the exponent of the divisor from that of the 

 dividend, and the remainder will be the exponent of the 

 quotient. 



Thus, 



3, When one term Is + and the other — ; the quotient must be 

 — , becaase + in the divisor X — in the quotient produces — ' 

 in the dividend ; or — in the divisor X + iii the quotient gives 

 — in the dividend. 



So that the rule is general ; like signs give +, and unlike 



signs give — » in the quotient. 



