AboutScotto Expertise Any kind of mathematics (calculus, analysis, game theory, linear approximation, finite differences, linear regression, linear programming, numerical analysis, probability, statistics, etc.).
I also have answered some questions in
Physics (mass, momentum, falling bodies),
Chemistry (charge, reactions, symbols, molecules), and
Biology.
Experience Experience in the area: I have tutored students in all areas of mathematics for over 20 years.
Education/Credentials: BSand MS in Mathematics from Oregon State University, where I completed sophomore course in Physics and Chemistry. I received both degrees with high honors.
Awards and Honors: I have passed Actuarial tests 100, 110, and 135.
Publications Maybe not a publication, but I have respond to well oveer 3000 questions on the PC.
That's around 2,000 in basic math and 1,000 in advanced math.
Education/Credentials I aquired well over 40 hours of upper division courses. This was well over the number that were required.
I graduated with honors in both my BS and MS degree from Oregon State University.
I was allowed to jump into a few junior level courses my sophomore year.
Awards and Honors I have been nominated as the expert of the month several times.
All of my scores right now are at least a 9.8 average (out of 10).
Past/Present Clients My past clients have been students at OSU, students at the college in South Seattle,
referals from a company, friends and aquantenances, people from my church, and people like you.
Question Limit sin-x (sin inverse X)
x->0 -------
x
Answer Is this problem lim(x->0)((sinx-x)/x)?
You can
a) apply L'Hosital's rule
b) put in the Taylor's series for sinx
Using a), you can find the derivative of the top and bottom, giving (cos(x)-1)/1. Put in 0 and out comes 0.
Using b), note that sinx=(sum n=0,infinity)(-1^n*x^2n/n!). The first term cancels the x leaving you with the rest of the series, which starts with x^3. Divide by x and you get the first term to be x². Putting 0 in here gives you 0 as the answer.
