Full text: Q (5. Band)

Quadratur (analytische). 221 Quadratur (analytische). 
_ . . C dx 
Sei a + 6x+cx 2 = X, j — = U. 
25) f 
dx 
x (a+bx+cx 2 ) 3 
dx _ 1 1 1 . x* 
xX r ~ Iäx 2 + 2« 2 X + 2a 3 lg X 
36 C dx 5c C 
a.l xX 3 a J 
kxX 1 
/ dx b rdx b y 
X 3 ~2a\J X 3 ~ 2a 3U 
f 
r dx 
J x 2 X 3 
r dx /_ 1 26\ 1_ /66* _ 3c\ r dx 106c rc 
J x* X 3 \ 2a# 1 a 2 x) X 2 \ a 2 a/.JxX 3 a 2 ./ J 
f dx f 1_ 56 /106 2 7c \ 11 J_ _ /106 3 _ 126c \ r dx 
J x* X 3 L 3ax 3 6a 2 x 2 \3a 3 3a 2 / x\ X 2 \ a 3 a 2 /./ *X 3 
/506 2 c 35c 2 \ /’dx 
“ № 3ä 2 )J X 3 
/ dx _ 1 36 r dx 2c i 
x 4 X 3 ~ ~4ax 4 X a ~ 2aJ x*X 3 ~ ~a J . 
'dx 
X 3 
dx 
x 3 X 3 
26) / 
dx 
Sei 
r dx 
a + bx + cx 2 =X, J —=.U. 
'dx_ 
X 3 
x (a + bx+cx 2 ) 1 
C dx _ 1 1 1 1 x a 6 Cdx b Ct 
J xX* ~ 6a X 3 + 4a 2 X 2 + 2a 3 X + 2a 1 S X ~ 2aJ X* ~ 2ä 2 ./ : 
6 Pdx b 
2a 3 J X 2 
1 46 T dx _ 7c /* dx 
X 3 aJ xX* aJ X 4 
dx 
.i'X* 
/ 
r dx _ / 1 56 \ , /106 2 _ 4cW dx 356c Cdx 
J x 3 X* “ \ 2ax 2 + 2a a x/ X 3 + \ a 2 ~a)J xX* + 2a 2 J X* 
/ dx _ r 1 _6 Z56 2 _ 3c\ 11 _ /206 3 _ 206c\ T 
J x*X* L 3ax 3 a 2 x 2 \a 3 a s /xJx 3 \ a 3 «■ /.7 
_ ^356 2 c 21c 2 ^y 
/ dx 1 76 C dx 5c P dx 
x 4 X* - 4ax* X 3 4a J x i X i 2a J x 3 X*' 
Die Tafeln 18 bis 26 lassen sich auch aus den ßeductionsformeln des Ab 
schnitts 25 herleiten, wenn man vorher: 
( 6 \ 2 6 a 6 2 
x + 2~j +a — — = cy 2 -f-a 
dx 
xX 1 
356 2 c 21c 2 \ / dx 
a 2 JJ xX* 
4c 
setzt, wo 
y = x + 
2c 
x=y 
'2c’ 
zu setzen ist. 
dx = dy
	        
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