472 



4 



(12) 52 sin- 1 2L_ - - (x + 12) A/9 + &c - 







( 18 ) 



' 



-\/10 + ft 

 8 



ifi3 



2171 V13 



4- ^ 

 V3 





 \/13 



(16) 



- 1 8 



sn 



(17) sinh- 1 

 o 



3)VlO+ Qx - 3 



(is) 2V 2 + 25 - 7 sinh- 1 \ 



o 



(19) i/25 sinh- 1 1 + V 2 + 25 j 



(21) sinh- : 



(20) (3# + 8)V 2 +25 - 71 sinh- 1 



x 6 



x 6 



(22) 6 Vx 2 - I2x +52+31 sinh- 1 



1 f x 6 1 



(23) -\ 16 sinh- 1 + (as- 6)V 2 - I2x+ 52 J 



(24) -28 sinh- 1 



52J 



/0 _v . . 



(25 7=. sinh 



V2 \/5 



- 23\/2 sinh- 



,- 



.If _ 2a:+3 



(27) 5\/2 sinh- 1 ,- + 2(2x + 



( 28 ) 7A/2 sinh- 1 



,- 



^ I 



/-- 



(31) -^Va; 2 - 16 - 16 cosh- 1 



(32) 1J50 cosh- 1 1 + (3x - 16) X/^e (33) cosh- 1 



(29) cosh- 1 - 

 4 



_ % 



9)\/2a; 2 + 6x+ 7J- 



(30) 5 V^ 2 - 16 - 12 cosh- 1 - 



4 



