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 Apr 4 comment Single Complement Variable + 1 Dilip, x + 1 = 1 for any x. But doesn't the x have to be non-complement? Or can x even be complements? Apr 4 asked Single Complement Variable + 1 Nov 15 awarded Yearling May 5 accepted Help on Inequality Proof May 5 comment Help on Inequality Proof Thanks makes perfect sense. Thank you. May 5 asked Help on Inequality Proof Mar 14 accepted Finding limit of function with more than one variable: $\lim_{(x,y)\to(0,0)} \frac{xy}{\sqrt{x^2+y^2}}$ Mar 13 comment Finding limit of function with more than one variable: $\lim_{(x,y)\to(0,0)} \frac{xy}{\sqrt{x^2+y^2}}$ You're right. The author did use the squeeze theorem to prove that the limit existed. I was just wondering why he chose x=y^2 as one more test to see what the limit was. Why not x=y? or y=x? Mar 13 asked Finding limit of function with more than one variable: $\lim_{(x,y)\to(0,0)} \frac{xy}{\sqrt{x^2+y^2}}$ Mar 1 accepted How do you sketch a vector/plane curve? Mar 1 asked How do you sketch a vector/plane curve? Feb 4 accepted Understanding and Integrating/Differentiating Power Series Feb 3 comment Understanding and Integrating/Differentiating Power Series Thanks Joe. Not notes, just me trying to understand what's going on in the problems. I was just wondering if my line of thinking was on the right path or if I was just completely out of line. When I first was introduced to this section, I didn't understand why we were integrating/differentiating functions and how they produced the power series we wanted. Feb 3 revised Understanding and Integrating/Differentiating Power Series added 20 characters in body; deleted 1 characters in body Feb 3 asked Understanding and Integrating/Differentiating Power Series Feb 2 accepted Integrating Power Series Feb 2 comment Integrating Power Series Thanks Moron. Makes sense now. Funny name, but it doesn't match you. Feb 2 comment Integrating Power Series What about plugging back in 1/2? If x = 1/2, then it's ln(1/2) = -ln2. What happened to the negative sign in front of ln2? It seems like they plugged it back into -ln(1-x) and not ln(1-x). If they did, why -ln(1-x)? Aren't we looking for ln(1-x)? Feb 2 revised Integrating Power Series added 31 characters in body Feb 2 asked Integrating Power Series