JMifceUanea Curio fa. 259 



^former. (3-) That the Quadrature may be 

 exprefs'd by a finite Quantity, when n is a 

 pofitive Integer, or equal to nothing, or if 

 2n be an odd Number for in thefe Cafes 

 each Series is broke off. (4.) That iq is 

 equal to the laft Term breaking off, of the 

 former Series. 



Example I. 



v % 



Let *,*= '-—• Becaufe in this Cafe n = »2 



a 



r == t, therefore lhall the Area ABD — J— 



COROLLARY. 



The whole Figure AFE is equal to twice 

 the Square, whofe lide is ACF, lefs the 

 Square of the Diameter. 



Example II. 



Let^— , becaufe in this Cafe n r, 



; ■ - : ■- '■ 4.;. uo..< ^'^pii 



r = i-> therefore fhall the Area ABD ±= 



1 



