Recent content by freetofu

OK, got it. Thanks!

Homework Statement Two sources produce coherent light waves that come together at a detector located 1.50000 mm from one source and 1.50660 mm from the other. If the two waves interfere constructively, what is(are) a possible value(s) for the wavelength? Assume the light is visible light...

Thanks. Duh.

Homework Statement Determine dy/dx xy^-2 = 1 Homework Equations The Attempt at a Solution Here's what I tried: y^-2 - 2xy^-3(dy/dx) = 1 dy/dx = (y - y^3)/2x The answer in the book is y/2x. How do you do it?

OK, I found it it, you're right. He just briefly mentions it at the end of the section. Confusing if you're new to it. Thanks.

Homework Statement I've been going through a book called "Short Calculus: The Original Edition of A First Course in Calculus," by Serge Lang. It says, " The derivative of a^x is a^x (log a)." But everything else I look at says the derivative of a^x is a^x (ln a). Since ln a and log a are...