Loose-leaf Version for Calculus: Early Transcendentals Combo 3e & WebAssign for Calculus: Early Transcendentals 3e (Life of Edition)
3rd Edition
ISBN: 9781319019846
Author: Jon Rogawski, Colin Adams
Publisher: W. H. Freeman
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Question
Chapter 16.2, Problem 3PQ
To determine
Whether the given statements were true or false
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Students have asked these similar questions
4.
Let F RNR be a mapping.
(i)
x ЄRN ?
(ii)
:
What does it mean to say that F is differentiable at a point
[1 Mark]
In Theorem 5.4 in the Lecture Notes we proved that if F
is differentiable at a point x E RN then F is continuous at x.
Proof. Let (n) CRN be a sequence such that xn → x ЄERN as n → ∞. We
want to show that F(xn) F(x), which means F is continuous at x.
Denote hnxn - x, so that ||hn|| 0. Thus we find
||F(xn) − F(x)|| = ||F(x + hn) − F(x)|| * ||DF (x)hn + R(hn) ||
(**)
||DF(x)hn||+||R(hn)||| → 0,
because the linear mapping DF(x) is continuous and for all large nЄ N,
(***) ||R(hn) ||
||R(hn) || ≤
→ 0.
||hn||
(a)
Explain in details why ||hn|| → 0.
[3 Marks]
(b)
Explain the steps labelled (*), (**), (***).
[6 Marks]
4.
In Theorem 5.4 in the Lecture Notes we proved that if F: RN → Rm
is differentiable at x = RN then F is continuous at x.
Proof. Let (xn) CRN be a sequence such that x → x Є RN as n → ∞. We want
F(x), which means F is continuous at x.
to show that F(xn)
Denote hn
xnx, so that ||hn||| 0. Thus we find
||F (xn) − F(x) || (*) ||F(x + hn) − F(x)|| = ||DF(x)hn + R(hn)||
(**)
||DF(x)hn|| + ||R(hn) || → 0,
because the linear mapping DF(x) is continuous and for all large n = N,
|||R(hn) || ≤
(***) ||R(hn)||
||hn||
→ 0.
Explain the steps labelled (*), (**), (***)
[6 Marks]
(ii)
Give an example of a function F: RR such that F is contin-
Total marks 10
uous at x=0 but F is not differentiable at at x = 0.
[4 Marks]
3.
Let f R2 R be a function.
(i) Explain in your own words the relationship between the
existence of all partial derivatives of f and differentiability of f at a
point x = R².
(ii)
Consider R2 → R defined by
:
[5 Marks]
f(x1, x2) = |2x1x2|1/2
Show that
af
af
-(0,0) = 0 and
-(0, 0) = 0,
Jx1
მx2
but f is not differentiable at (0,0).
[10 Marks]
Chapter 16 Solutions
Loose-leaf Version for Calculus: Early Transcendentals Combo 3e & WebAssign for Calculus: Early Transcendentals 3e (Life of Edition)
Ch. 16.1 - Prob. 1PQCh. 16.1 - Prob. 2PQCh. 16.1 - Prob. 3PQCh. 16.1 - Prob. 4PQCh. 16.1 - Prob. 1ECh. 16.1 - Prob. 2ECh. 16.1 - Prob. 3ECh. 16.1 - Prob. 4ECh. 16.1 - Prob. 5ECh. 16.1 - Prob. 6E
Ch. 16.1 - Prob. 7ECh. 16.1 - Prob. 8ECh. 16.1 - Prob. 9ECh. 16.1 - Prob. 10ECh. 16.1 - Prob. 11ECh. 16.1 - Prob. 12ECh. 16.1 - Prob. 13ECh. 16.1 - Prob. 14ECh. 16.1 - Prob. 15ECh. 16.1 - Prob. 16ECh. 16.1 - Prob. 17ECh. 16.1 - Prob. 18ECh. 16.1 - Prob. 19ECh. 16.1 - Prob. 20ECh. 16.1 - Prob. 21ECh. 16.1 - Prob. 22ECh. 16.1 - Prob. 23ECh. 16.1 - Prob. 24ECh. 16.1 - Prob. 25ECh. 16.1 - Prob. 26ECh. 16.1 - Prob. 27ECh. 16.1 - Prob. 28ECh. 16.1 - Prob. 29ECh. 16.1 - Prob. 30ECh. 16.1 - Prob. 31ECh. 16.1 - Prob. 32ECh. 16.1 - Prob. 33ECh. 16.1 - Prob. 34ECh. 16.1 - Prob. 35ECh. 16.1 - Prob. 36ECh. 16.1 - Prob. 37ECh. 16.1 - Prob. 38ECh. 16.1 - Prob. 39ECh. 16.1 - Prob. 40ECh. 16.1 - Prob. 41ECh. 16.1 - Prob. 42ECh. 16.1 - Prob. 43ECh. 16.1 - Prob. 44ECh. 16.1 - Prob. 45ECh. 16.1 - Prob. 46ECh. 16.1 - Prob. 47ECh. 16.1 - Prob. 48ECh. 16.1 - Prob. 49ECh. 16.1 - Prob. 50ECh. 16.1 - Prob. 51ECh. 16.1 - Prob. 52ECh. 16.1 - Prob. 53ECh. 16.1 - Prob. 54ECh. 16.1 - Prob. 55ECh. 16.2 - Prob. 1PQCh. 16.2 - Prob. 2PQCh. 16.2 - Prob. 3PQCh. 16.2 - Prob. 4PQCh. 16.2 - Prob. 1ECh. 16.2 - Prob. 2ECh. 16.2 - Prob. 3ECh. 16.2 - Prob. 4ECh. 16.2 - Prob. 5ECh. 16.2 - Prob. 6ECh. 16.2 - Prob. 7ECh. 16.2 - Prob. 8ECh. 16.2 - Prob. 9ECh. 16.2 - Prob. 10ECh. 16.2 - Prob. 11ECh. 16.2 - Prob. 12ECh. 16.2 - Prob. 13ECh. 16.2 - Prob. 14ECh. 16.2 - Prob. 15ECh. 16.2 - Prob. 16ECh. 16.2 - Prob. 17ECh. 16.2 - Prob. 18ECh. 16.2 - Prob. 19ECh. 16.2 - Prob. 20ECh. 16.2 - Prob. 21ECh. 16.2 - Prob. 22ECh. 16.2 - Prob. 23ECh. 16.2 - Prob. 24ECh. 16.2 - Prob. 25ECh. 16.2 - Prob. 26ECh. 16.2 - Prob. 27ECh. 16.2 - Prob. 28ECh. 16.2 - Prob. 29ECh. 16.2 - Prob. 30ECh. 16.2 - Prob. 31ECh. 16.2 - Prob. 32ECh. 16.2 - Prob. 33ECh. 16.2 - Prob. 34ECh. 16.2 - Prob. 35ECh. 16.2 - Prob. 36ECh. 16.2 - Prob. 37ECh. 16.2 - Prob. 38ECh. 16.2 - Prob. 39ECh. 16.2 - Prob. 40ECh. 16.2 - Prob. 41ECh. 16.2 - Prob. 42ECh. 16.2 - Prob. 43ECh. 16.2 - Prob. 44ECh. 16.2 - Prob. 45ECh. 16.2 - Prob. 46ECh. 16.2 - Prob. 47ECh. 16.2 - Prob. 48ECh. 16.2 - Prob. 49ECh. 16.2 - Prob. 50ECh. 16.2 - Prob. 51ECh. 16.2 - Prob. 52ECh. 16.2 - Prob. 53ECh. 16.2 - Prob. 54ECh. 16.2 - Prob. 55ECh. 16.2 - Prob. 56ECh. 16.2 - Prob. 57ECh. 16.2 - Prob. 58ECh. 16.2 - Prob. 59ECh. 16.2 - Prob. 60ECh. 16.2 - Prob. 61ECh. 16.2 - Prob. 62ECh. 16.2 - Prob. 63ECh. 16.2 - Prob. 64ECh. 16.2 - Prob. 65ECh. 16.2 - Prob. 66ECh. 16.2 - Prob. 67ECh. 16.2 - Prob. 68ECh. 16.2 - Prob. 69ECh. 16.2 - Prob. 70ECh. 16.2 - Prob. 71ECh. 16.2 - Prob. 72ECh. 16.2 - Prob. 73ECh. 16.2 - Prob. 74ECh. 16.2 - Prob. 75ECh. 16.3 - Prob. 1PQCh. 16.3 - Prob. 2PQCh. 16.3 - Prob. 3PQCh. 16.3 - Prob. 4PQCh. 16.3 - Prob. 1ECh. 16.3 - Prob. 2ECh. 16.3 - Prob. 3ECh. 16.3 - Prob. 4ECh. 16.3 - Prob. 5ECh. 16.3 - Prob. 6ECh. 16.3 - Prob. 7ECh. 16.3 - Prob. 8ECh. 16.3 - Prob. 9ECh. 16.3 - Prob. 10ECh. 16.3 - Prob. 11ECh. 16.3 - Prob. 12ECh. 16.3 - Prob. 13ECh. 16.3 - Prob. 14ECh. 16.3 - Prob. 15ECh. 16.3 - Prob. 16ECh. 16.3 - Prob. 17ECh. 16.3 - Prob. 18ECh. 16.3 - Prob. 19ECh. 16.3 - Prob. 20ECh. 16.3 - Prob. 21ECh. 16.3 - Prob. 22ECh. 16.3 - Prob. 23ECh. 16.3 - Prob. 24ECh. 16.3 - Prob. 25ECh. 16.3 - Prob. 26ECh. 16.3 - Prob. 27ECh. 16.3 - Prob. 28ECh. 16.3 - Prob. 29ECh. 16.3 - Prob. 30ECh. 16.3 - Prob. 31ECh. 16.4 - Prob. 1PQCh. 16.4 - Prob. 2PQCh. 16.4 - Prob. 3PQCh. 16.4 - Prob. 4PQCh. 16.4 - Prob. 5PQCh. 16.4 - Prob. 6PQCh. 16.4 - Prob. 1ECh. 16.4 - Prob. 2ECh. 16.4 - Prob. 3ECh. 16.4 - Prob. 4ECh. 16.4 - Prob. 5ECh. 16.4 - Prob. 6ECh. 16.4 - Prob. 7ECh. 16.4 - Prob. 8ECh. 16.4 - Prob. 9ECh. 16.4 - Prob. 10ECh. 16.4 - Prob. 11ECh. 16.4 - Prob. 12ECh. 16.4 - Prob. 13ECh. 16.4 - Prob. 14ECh. 16.4 - Prob. 15ECh. 16.4 - Prob. 16ECh. 16.4 - Prob. 17ECh. 16.4 - Prob. 18ECh. 16.4 - Prob. 19ECh. 16.4 - Prob. 20ECh. 16.4 - Prob. 21ECh. 16.4 - Prob. 22ECh. 16.4 - Prob. 23ECh. 16.4 - Prob. 24ECh. 16.4 - Prob. 25ECh. 16.4 - Prob. 26ECh. 16.4 - Prob. 27ECh. 16.4 - Prob. 28ECh. 16.4 - Prob. 29ECh. 16.4 - Prob. 30ECh. 16.4 - Prob. 31ECh. 16.4 - Prob. 32ECh. 16.4 - Prob. 33ECh. 16.4 - Prob. 34ECh. 16.4 - Prob. 35ECh. 16.4 - Prob. 36ECh. 16.4 - Prob. 37ECh. 16.4 - Prob. 38ECh. 16.4 - Prob. 39ECh. 16.4 - Prob. 40ECh. 16.4 - Prob. 41ECh. 16.4 - Prob. 42ECh. 16.4 - Prob. 43ECh. 16.4 - Prob. 44ECh. 16.4 - Prob. 45ECh. 16.4 - Prob. 46ECh. 16.4 - Prob. 47ECh. 16.4 - Prob. 48ECh. 16.4 - Prob. 49ECh. 16.4 - Prob. 50ECh. 16.4 - Prob. 51ECh. 16.5 - Prob. 1PQCh. 16.5 - Prob. 2PQCh. 16.5 - Prob. 3PQCh. 16.5 - Prob. 4PQCh. 16.5 - Prob. 5PQCh. 16.5 - Prob. 6PQCh. 16.5 - Prob. 7PQCh. 16.5 - Prob. 1ECh. 16.5 - Prob. 2ECh. 16.5 - Prob. 3ECh. 16.5 - Prob. 4ECh. 16.5 - Prob. 5ECh. 16.5 - Prob. 6ECh. 16.5 - Prob. 7ECh. 16.5 - Prob. 8ECh. 16.5 - Prob. 9ECh. 16.5 - Prob. 10ECh. 16.5 - Prob. 11ECh. 16.5 - Prob. 12ECh. 16.5 - Prob. 13ECh. 16.5 - Prob. 14ECh. 16.5 - Prob. 15ECh. 16.5 - Prob. 16ECh. 16.5 - Prob. 17ECh. 16.5 - Prob. 18ECh. 16.5 - Prob. 19ECh. 16.5 - Prob. 20ECh. 16.5 - Prob. 21ECh. 16.5 - Prob. 22ECh. 16.5 - Prob. 23ECh. 16.5 - Prob. 24ECh. 16.5 - Prob. 25ECh. 16.5 - Prob. 26ECh. 16.5 - Prob. 27ECh. 16.5 - Prob. 28ECh. 16.5 - Prob. 29ECh. 16.5 - Prob. 30ECh. 16.5 - Prob. 31ECh. 16.5 - Prob. 32ECh. 16.5 - Prob. 33ECh. 16.5 - Prob. 34ECh. 16.5 - Prob. 35ECh. 16.5 - Prob. 36ECh. 16.5 - Prob. 37ECh. 16.5 - Prob. 38ECh. 16 - Prob. 1CRECh. 16 - Prob. 2CRECh. 16 - Prob. 3CRECh. 16 - Prob. 4CRECh. 16 - Prob. 5CRECh. 16 - Prob. 6CRECh. 16 - Prob. 7CRECh. 16 - Prob. 8CRECh. 16 - Prob. 9CRECh. 16 - Prob. 10CRECh. 16 - Prob. 11CRECh. 16 - Prob. 12CRECh. 16 - Prob. 13CRECh. 16 - Prob. 14CRECh. 16 - Prob. 15CRECh. 16 - Prob. 16CRECh. 16 - Prob. 17CRECh. 16 - Prob. 18CRECh. 16 - Prob. 19CRECh. 16 - Prob. 20CRECh. 16 - Prob. 21CRECh. 16 - Prob. 22CRECh. 16 - Prob. 23CRECh. 16 - Prob. 24CRECh. 16 - Prob. 25CRECh. 16 - Prob. 26CRECh. 16 - Prob. 27CRECh. 16 - Prob. 28CRECh. 16 - Prob. 29CRECh. 16 - Prob. 30CRECh. 16 - Prob. 31CRECh. 16 - Prob. 32CRECh. 16 - Prob. 33CRECh. 16 - Prob. 34CRECh. 16 - Prob. 35CRECh. 16 - Prob. 36CRECh. 16 - Prob. 37CRECh. 16 - Prob. 38CRECh. 16 - Prob. 39CRECh. 16 - Prob. 40CRECh. 16 - Prob. 41CRECh. 16 - Prob. 42CRECh. 16 - Prob. 43CRECh. 16 - Prob. 44CRECh. 16 - Prob. 45CRECh. 16 - Prob. 46CRECh. 16 - Prob. 47CRECh. 16 - Prob. 48CRECh. 16 - Prob. 49CRECh. 16 - Prob. 50CRECh. 16 - Prob. 51CRECh. 16 - Prob. 52CRECh. 16 - Prob. 53CRECh. 16 - Prob. 54CRECh. 16 - Prob. 55CRECh. 16 - Prob. 56CRECh. 16 - Prob. 57CRECh. 16 - Prob. 58CRECh. 16 - Prob. 59CRECh. 16 - Prob. 60CRECh. 16 - Prob. 61CRE
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