ALGEDKA. 10 



+(a + bY-3(b + c)(c + a)(a + b)_ 

 a a ' 



(8) (*-* + l)(s 4 



99. If + = ( 



a 6 a 6 



of* 1 y" +l / & y 



then will - + y jr - = [ - ) . 



a b \a + b) 



100. Having given - =a t =5, 



- a-4-a; 



find the relation between a, b, c ; and prove that 



a(i - be) ~ 6 (1 - ca) ~ c (I - ab) ' 

 101. Having given the equations 



])rove that 



102. If 



then, for all integral values of n, 



1 1 JL_ _ 1_ 



6=^ c** 1 = (a 4- 6 + c)-* ' ' 



103. If x + y + z = xyz, then will 



Jv 2s 2* 2y 2? 



^^ 



-t- t4.g qg-t-y y-fg 



-- . 



* 



