Robi Bhattacharjee - Advanced Math - Mathematics - Science

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Expert Profile: Robi Bhattacharjee

Expertise: I can answer a variety of questions on mathematics. Questions on trigonometry, calculus(preferably single variable), algebra, geometry, and number theory will be answered. I cannot answer questions on abstract branches of mathematics such as group theory. I also cannot answer questions on statistics. In number theory, I can answer questions on congruences, prime numbers, units, functions, and the riemann-zeta function.

Experience in the area
I have studied advanced math my entire life. I started calculus in sixth grade. I have attended numerous math competitions and I am attending math organizations such as the San-Diego math circle.

Organizations
I am in the San Diego Math Circle

Education/Credentials
I am entering high school and have received a perfect score and the STAR test 5 times in a row. I also have gotten recognitions in the AMC 10, AIME, Math Counts, and ARML. Additionally, I have won the San Diego Math Olimpiad twice in a row.

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Average Ratings
Prestige Points: 1550
Knowledge	9.98 Best of the best
Clarity of Response	9.95 Best of the best
Timeliness	10.0 Best of the best
Politeness	10.0 Best of the best
Number Of Questions (in Past 24 Hours)		1
Max Questions to be Asked (in 24 Hour period)		1
Total Questions (since joining AllExperts)		149

Recent Reviews from Users

Knowl	Clarity	Time	Politeness	Date
10	10	10	10	11/18/08
10	10	10	10	11/13/08
10	10	10	10	11/10/08
10	10	10	10	10/27/08
10	10	10	10	10/19/08

User Comments

Great! Thanks!
(Keli on 11/18/08)

Very well done! Thank you.
(Pete on 11/10/08)

Thank you, thank you, thank you.
(Jon on 10/27/08)

thanks!
(Lucy on 10/19/08)

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	View Past Answers	View Detailed Ratings

Recent Answers from Robi Bhattacharjee

2008-11-10 Proofs: Hi Pete, Well, basically we have to prove that it is impossible to have a congruent to 0 while b isn't. So a^2 + b^2 = b^2 mod(3) because a^2 = 0 mod(3) so this means that b^2 must = 0 mod...

2008-11-08 Proofs: Hi Pete, Let us take this in two cases. Case 1: a = 0 (mod 3). Well, if 3 divides a then 3 also divides a^3 since a^3 is a multiple of a. So clearly, a^3 = 0 (mod 3) which means a^3 = a (mod 3)...

2008-11-02 Discrete Mathematics: Hi Jeffery, When it says not more than, what it means is less than or equal to. Conversely, when it says not less than, it means greater than or equal to. Now for the inequalities. Let x be the...

2008-10-27 Discrete Mathematics: Hello Jeffery, I'm afraid that this is a problem that you will have to figure out on your own. I don't think that the "coding method" is something discussed in a general math text book. I can only suggest...

2008-10-26 Continuous compounding: Hi Jon, Your calculator should have a button that says ln. Most scientific and graphing calculators do. So once you find the button, simply do 1 + .1/2 on the calculator. Then do ln( of the answer)...