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- Paul Klarreich
Calculus/Expert Profile
Expertise
All topics in first-year calculus including infinite series, max-min and related rate problems. Also trigonometry and complex numbers, theory of equations, exponential and logarithmic functions. I can also try (but not guarantee) to answer questions on Analysis -- sequences, limits, continuity.
Experience in the area
I taught all mathematics subjects from elementary algebra to differential equations at a two-year college in New York City for 25 years.
Education/Credentials
(See above.)
Average Ratings
Recent Answers from Paul Klarreich
2009-11-21 Lim sin x/x:
Lim x→0 {(sinx°)/x} =? ANSWER: Questioner: akkha Country: Nepal Category: Calculus Private: No Subject: mathmetical problem Question: sir I have a mathmetical problem in limit and
2009-11-19 curve sketching:
Questioner: sangita Country: Trinidad and Tobago Category: Calculus Private: Yes Subject: curve sketching This is a lot of work, WHICH YOU WILL DO, along these lines: Find the following:
2009-11-19 Maximum-minimum problem:
Questioner: Ann Country: United States Category: Calculus Private: No Subject: Max./Min Problem Question: "An oil can is to be made in the form of a right circular cylinder to hold one quart
2009-11-19 maximizing revenue:
Questioner: Terry Country: Canada Category: Calculus Private: No Subject: calculus, maximizing revenue Question: Demand for a good is given by P=100*e^(0.00125X) （$p/unit, x units/month）
2009-11-18 Help Derivatives:
Questioner: Vickkie Country: United States Category: Calculus Private: Yes Subject: Help Derivatives Question: Please help me find the intervals of f(x) increasing, the interval of f(x) decreasing
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