Maple1131W5T5 - Basic calculus

Friday, 30 March 2018

12:28 AM

Question One

Machine generated alternative text:
A function f(x) is definied by 
Use Maple to evaluate the following limits. 
lim _ f(x) 
lim f(x) — 
_49/11 
To avoid typing errors, you may copy and paste the following in your command line 
-27T -103x +126x2+864X+8641 
x 4+x3 —45 P —189 x—216 
xA4+x

e := abs(x^6+3*x^5-27*x^4-103*x^3+126*x^2+864*x+864)/(x^4+x^3-45*x^2-189*x-216);

limit(e,x=-3,left);

limit(e,x=-3,right);

 

 

Question Two

Machine generated alternative text:
Find a 10 significant figure approximation to the 8th derivative of 
2 
Select the matching answer from this list below 
evaluated at x = 5_ 
0 0.5364931726 
0 0.3065675272 
0 0.9197025816 
@ 0.766418818 
0 0.3832094090 
0 0.4598512908 
0 
0.6131350544 
0 0.6897769362 
0 0.2299256454 
0 0.8430606998

evalf(subs(x = 5, diff(sin(x^2/(x^4+1))*exp(x), `$`(x, 8))), 10);

Machine generated alternative text:
exp(x), xS8 
0.766418818 
z 10

 

 

Question Three

Machine generated alternative text:
Suppose 
determines y as a function of Assuming that the Maple command 
eqn + + yA4 = 4- 
dy 
has been executed; which of the following Maple expressions would find 
4 
O 
dc 
implicitdiff(x.y, eqn);

Question Four

Machine generated alternative text:
Enter the global maximum and global minimum values for 
over the interval [—4, 4] in the boxes below. 
+ 42 
+ 105 x 
+ 20 x 
- 225 x 
- 270 
Global maximum value: 
Global minimum value: 
86968 
-323 
To prevent typing errors, you can copy and paste 
p: 
in your Maple window

p := 5*x^6+42*x^5+105*x^4+20*x^3-225*x^2-270*x;

minimize(p, x = -4 .. 4);

maximize(p, x = -4 .. 4);

 

Machine generated alternative text:
105 + 
4215 —2701 
-323 
86968

 

 

Question Five

Machine generated alternative text:
First make sure that x and c are unassigned variables and then enter the Maple command 
This tells Maple that c is a postive real number. (You will see more on using "'assume" later) 
Next, calculate the improper definite integral of 
4 
(6 sin@) + 8 cos @)) e 
for x from 0 to DO and assign this to the variable ansl_ (Notice that Maple displays c as to indicate it that an assumption has been made about c.) 
Finally calculate the limit of c times ansl as c tends to infinity and enter the limit in the box below (Enter your answer exactly using Maple syntax, not as a decimal.) 
10

e := (6*sin(x)+8*cos(x))*exp(-(4/5)*c*x);

ans1 := int(e, x = 0 .. infinity);

limit(c*ans1, c = infinity);

 

Machine generated alternative text:
4 
(6 sin(x) 
ansl : 
8 cos(x)) exp 
_infinity); 
(6 sin(x) + 8 cos(x)) e 
10 (16c- 15) 
16c- +25 
limit(c ansl, c infinity);

 

 

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