You are here:
Expert  Average Ratings  Expertise 

David HemmerU.S.
Available

I can answer almost any question from undergraduate mathematics courses.  
Sombra ShadowU.S.
Available

I can answer most questions up through Calculus and some in Number Theory and Abstract Algebra.  
Scott A WilsonU.S.
Available

I can answer any question in general math, arithetic, discret math, algebra, box problems, geometry, filling a tank with water, trigonometry, precalculus, linear algebra, complex mathematics, probability, statistics, and most of anything else that relates to math. I can also say that I broke 5 minutes for a mile, which is over 12 mph, but is that relevant?  
Clyde OliverU.S.
Available

I can answer all questions up to, and including, graduate level mathematics. I am more likely to prefer questions beyond the level of calculus. I can answer any questions, from basic elementary number theory like how to prove the first three digits of powers of 2 repeat (they do, with period 100, starting at 8), all the way to advanced mathematics like proving Egorov's theorem or finding phase transitions in random networks.  
randy pattonU.S.
Available

college mathematics, applied math, advanced calculus, complex analysis, linear and abstract algebra, probability theory, signal processing, undergraduate physics, physical oceanography  
Ahmed SalamiNigeria
Available

I can provide good answers to questions dealing in almost all of mathematics especially from A`Level downwards. I can as well help a good deal in Physics with most emphasis directed towards mechanics.  
Janet YangU.S.
Available

I can answer questions in Algebra, Basic Math, Calculus, Differential Equations, Geometry, Number Theory, and Word Problems. I would not feel comfortable answering questions in Probability and Statistics or Topology because I have not studied these in depth. 
If sin(2x) = sin(x/2), then 1sinē(2x) = 1sinē(x/2) and cosē(2x) = cosē(x/2) So cos(2x)=cos(x/2) or cos(2x)=cos(x/2) If cos(2x)=cos(x/2) , Sin(3x/2) = sin( 2xx/2 ) = sin(2x)cos(x/2) 
You have to be careful here because you are dealing with infinity, i.e. 1/2 of infinity is still infinity. You are actually asking what the cardinality of the oneoutof10 set is (where 1/10 is the probability
Hi, certainly the probability is NOT zero even though it seems highly unlikely that one would guess correctly. To have a probability of zero it must be an event that could NEVER happen. And since infinity
You are correct, the number of correct answers will be infinite. Roughly speaking, the probability of correct answers is a set with non zero measure And is one toone with an infinite set (integers)
Looking at the equation, you can see how it kind of looks like a polynomial. In fact, it can be cleaned up a little using the algebra of exponents, i.e., e^(a+b) = (e^a)(e^b) and (e^x)^c = e^(cx)
Answers by Expert: