(→tests solution) |
m (→tests solution) |
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a) | a) | ||
b) | b) | ||
| − | 2)a) f(x) = int(o,sqrtx)of e^t^2 dt | + | 2) |
| − | + | a)f(x) = int(o,sqrtx)of e^t^2 dt | |
| − | + | chain rule | |
| − | + | where u = squrt x | |
| − | + | using funamental therem of calc | |
| − | + | f(u)= int(0,u) of e^t^2 dt | |
| − | + | = e^u^2(1/2*x^(-1/2)) | |
| + | = (e^x)/(2sqrt(x)) | ||
b)lim of x as x goes to inf x/f(x)= | b)lim of x as x goes to inf x/f(x)= | ||
Revision as of 08:08, 25 September 2008
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tests solution
== test 1 ==
1)
a)
b)
2)
a)f(x) = int(o,sqrtx)of e^t^2 dt
chain rule
where u = squrt x
using funamental therem of calc
f(u)= int(0,u) of e^t^2 dt
= e^u^2(1/2*x^(-1/2))
= (e^x)/(2sqrt(x))
b)lim of x as x goes to inf x/f(x)=
lim of x as x goes to inf 1/f'(x)=
lim of x as x goes to inf 1/(e^x/(2sqrt(x))=
lim of x as x goes to inf (2sqrt(x))/(e^x)=
lim of x as x goes to inf 1/(sqrt(x)e^x)=
0
3)
4)
v= 2pi*xbar*A v= int(a,b) of(2pi*x*(f(x)-g(x))) xbar= int(a,b) of(x*(f(x)-g(x)))/A
5)
a) b) c) d)
