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give me edals

so the answer is?

oh that was annoying i cldnt type

give me medals free medals for everyone

can you write the equation again please :D

\[ \frac{d \ }{dx} \int_{17}^x \sin(t^2)/t \ dt \]

d/dx(sinx^2/x) - d/dx(sin(17)/17)

No

where did i go wrong?

look at the earlier example with ln

k i will

wasn't it d/dx(F(x)-F(17))

oh i see where i went wrong!!!!

Yes, but F is not the integrand.

F(x)=-cosx/x???

Nooo

K just tell me the answer

Look at the ln example again.

In the example we subsituted t for x

In the example we subsituted t for x

\[ \frac{d \ }{dx} \int_2^x \ln(t^2+1) \ dt \]

What is the value of that expression?

i dont know i am feeling very stupid!!!!!!
dF/dx=ln(x^2+1)

righ

James do you think you help me please?

dont take james away form me:(

i can wait

quick rld613. I want to move on with you to yet another example afterwards

rld said she didn't need OS anymore

so (d/dx) int_17^x sin(t^2)/t dt = ...

i didnt get that why is 17 to th epower of x

\[ (d/dx) \int_{17}^x \sin(t^2)/t \ dt \]

yes

evaluate. What is the that equal to.

y is it wrong what i showed u b4?

plz be nice to me and show me all the step? :D

LOL see u later :D

I'm serious. And I'll be back in 5 minutes, so hurry.

??

u did u come back already!!!

What's the answer?

K can u walk me thru the steps cuz like i bever learnt this stuff?
YOu r so scary LOL

I was hoping i wld have the answer b4 u wld return

teh answer wld sinx/x?

iSo what is F(x)?????

That is where i am going wrong

oh i know si(x)?

d/dx(si(x)?

What is dF/dx here? What is it equal to?

By the FTC, dF/dx = .... what?

You are forsure ready to kill me!!!!!!!!!!!!!!!

You are forsure ready to kill me!!!!!!!!!!!!!!!

shakes head

dF/dx= sinx^2/x

correct. Hence the derivative wrt (with respect to) x of the entire integral equals what?

hey james can you help me with math?

This thing ... what's it equal to?

sinx^2/x????? this is a guess

it shouldn't be guess. it is exactly right.

oh ya !!!!!!!!

That is what i thought in the first place but i left out by accident the squared

I can be so annoying sometimes

oh u r so funny!!!

Now write out the steps. This problem isn't exactly the same as the others.

ok give me a sec

\[d/dx=(\sqrt{x ^{6}+1}-\sqrt{x ^{3}+1})\]

This one i guessed

I think it was suppossed to be dF/dx

hint: you need to use the chain rule.

ok so let me try that

james u gotta help me out on this one

alrighty thanks james

I will call you back when i get the

I got the answer :D

that's it. Good

Oh this is very simple there is just one small catch that you have to differentiate it twice

d/dx(ln(cosx))
(1/cosx)*-sin(x)= -sin(x)/cos(x)
-tan(x)

exactly, good.

oh u are here LOL

Thanks for helping me out

sure. have a good vacation.

U better take a vacation from OS tooo!!! :D

I might just do that.

Ya u need a break to refresh again

OS wldnt survive without James myinaya satellite and Hero