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Problems in Mathematical Analysis.pdf - pwp.net.ipl.pt

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444 Answers<br />

(b<strong>in</strong>ormal). 2103. bx *=0 (osculat<strong>in</strong>g plane);<br />

* +6<br />

( b<strong>in</strong>ormal ) ; TSBS<br />

J = o /<br />

J7*<br />

2111.<br />

|7^=i ; M<br />

3y + 19z~27 = 0. 2107. a) V~i\ b) . 2108. a) K =<br />

-<br />

. \i fl><br />

# = ' 1<br />

> (pr<strong>in</strong>cipal normal);<br />

2 = u }<br />

/+ *<br />

v== > / 2106 - 2jc +<br />

2112. When t = 0, K = 2, oyx = 0,<br />

i /"To 99 /~TQ<br />

ww =2; when /=!, /C=4-1/T7 w, = -^=., w = n 2 I/ ~ .<br />

/ r 14<br />

' *<br />

"^ j^<br />

Cha<strong>pt</strong>er VII<br />

9 9^ 7t 9 TT/7*<br />

2113. 44. 2114. ln~ 2115. ~. 2116. 4- 2117. 50.4. 2118. .<br />

O ^- L** \JL 4 ^<br />

*<br />

_<br />

2119.2.4.<br />

2120. -. 2121. ^ = ^r 1; x=2 y\ y = 6; y = 2. 2122. t/ = x 2 ; t/ = A: + 9;<br />

O 4<br />

It 21<br />

00<br />

x=l; x = 3. 2125. / = 0; t/=y25 ^ 2 ; x = 0; x = 3. 2126. r/ = JC 2 ;<br />

*=-!; * = 2. 2127.<br />

2128.<br />

11 ix<br />

J*Jf(*. i/)rfx =<br />

(JdxJ/(*.<br />

y)d(/. 2129.<br />

J dj/ *<br />

f/ 00 J 00<br />

/ (x,<br />

1 1 t 2 X 2 2JC + 3<br />

00<br />

J/^ 42<br />

f(x,y)dy. 2130.<br />

10<br />

12 72<br />

1 2Af<br />

2131. dy f (x,<br />

' 2I32 '<br />

12<br />

,/T<br />

2 y T

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