Recent content by iwantcalculus

Homework Statement Homework Equations The Attempt at a Solution Note: by real solution I mean the correct implicit derivative, not an actual real solution... Please help![/B]

Thanks alot... problem solved! turns out there was no need for e and ln...\Edit: a new question came to my mind, about the natural log, when we take natural log of both sides like imagine : x+x = x^2 +x -2 or anything you can make up if i take natural log of both sides is it ln(x+x) =...

Sorry, so how do you solve these questions correctly if that property is not true? I am stuck there now...

I thought you were supposed to read the template and then remove it, but I did the stuff in the template... Now I hope mods don't remove it... And this is my solution : please help!

So, according to answer sheet, the answer is 1... The question is : limit as x approaches infinity of : squareroot( x^2 + x ) - squareroot( x^2 - x) I tried to put it in a limit calculator, but the steps shown are very complex and don't even involve l'hopital's rule... I think the solution...

i need help with finding the domain for a function where there is a square root , here is the picture of such questions : http://imgur.com/YcqadOe please see the picture, there are two questions in it, 35 and 37 let's start with question 35, this is how i try to solve it : x^2 - 5x > 0 x...

Ok, so it will become : x= tan^-1 [squareroot(1/3)] Now what do I need to memorize in order to know what tan inverse of squareroot of 1/3 is? I remember there was some sort of way to memorize these things but I don't remember what it was.

Sorry, I made another mistake in writing down the question, but here are my steps : 1- take sin^2 to the other side 2-divide by cos^2 x, the cos^2 x on one side cancels out and becomes 1 , and the sin^2 x on the other side becomes tan^2 x 3- so now we have : 1 = 3 tan^2 (x) 1/3 = (tan...

"I would suggest moving (-3sin(2x)) to the other side of the equals-sign and then try to remember all the trig functions." Sorry, I made a mistake writing the original question, both sin and cosine were squared, as you can now see in the edited version. However, after moving one to the other...

Hello reader, I have an exam really soon and it includes a good bit of trigonometry, but I'm having problems with the trig stuff because this exam does not allow calculators and since I was dependent on the calculator, I haven't memorized anything about the trigonometric functions. I don't know...

As we can see now, oil prices are falling pretty forcefully, and it seems like they are heading for $30. Now of course a lot of people ask: "when will petroleum collapse?" And they usually mean due to renewable, sustainable, and nuclear energy for electricity and cars. The "more knowledgeable"...

The question is : Show that the curve defined implicitly by the equation X*Y^3 + x^3*Y = 4 has no horizontal tangent.The answer is : Can someone please explain what steps are used in order to obtain the answer in a simple way for a calculus beginner? This answer is not helping me understand...

< Mentor Note -- thread moved to HH from the technical PF forums, so no HH Template is shown > Hello! So our teacher puts some really hard questions in acids and bases exams, and I would like someone to help me find similar questions and know how to solve these questions.. So the first...

So I'm interested in studying Electrical Engineering/ Chemical Engineering and I will soon have 3 months of free time before going to the university. What could I self learn online that will give maximum help and boost for me if I want to go Chem E? What about EE? I think the 3 months will be...

Thanks everyone for the amazing replies! I have to stop self-studying calculus for a while now that exams are here, but I will definitely check them out after the exams are done and try to get the most out of them.