Which of the following integrals are divergent?
There are 3 functions there and I believe that the last 2 both diverge, am I doing something wrong? Because I can only choose 1 answer,

- anonymous

- katieb

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- anonymous

##### 1 Attachment

- amistre64

div means goes off into infinity right?

- amistre64

if it integrates to a value its convergent

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## More answers

- anonymous

yes

- amistre64

cosx comes from sinx
6 sinx from 0 to inf
well, im sure sinx bounces back and forth so it has no value at infinity ... but lets check the wolf just in case the althiemers is rearing up :)

- anonymous

lol, mkay

- amistre64

http://www.wolframalpha.com/input/?i=integrate+6cos%28x%29+from+0+to+infinity
doesnt converge, must diverge then

- anonymous

yeah, same thing I got, but I also got that the theta one diverges :/

- amistre64

the last one; is that sin(10t) dt ?
or sin(10) t dt

- anonymous

sin10(theta) d(theta) I believe

- amistre64

in either case, it doesnt converge either ... according to the wolf.
so in this case, is there a difference definition of divergent than the one of used to seeing?

- amistre64

DNE and divergent might be different ideas

- anonymous

Well, can't you say it diverges by TFD?

- amistre64

test for divergence? perhaps

- amistre64

the last 2 definantly diverge; maybe its a program error?

- anonymous

That really sucks of me then lol, I can only choose one...

- anonymous

for*

- amistre64

who grades it?

- anonymous

Automatically, by the computer

- amistre64

whats your grade at the moment :)

- anonymous

Lol, its about 93,ish

- anonymous

I'll try taking a screen shot and email it to the professor, if I miss it maybe he'll just give me the points :P

- amistre64

might just have to cross your fingers and click next ;)

- amistre64

thats possible too

- anonymous

Hope he's in a good mood, but thanks for the help!

- amistre64

good luck ..

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