Advanced Math/Expert Profile

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• Knowledgeability 9.96
• Clarity of Response 9.96
• Timeliness 9.63
• Politeness 10.0

• Number of Questions (in Past 24 Hours) 0
• Max Questions to be Asked (in 24 Hour Period) 1
• Total Questions (since joining AllExperts) 156
• Volunteer Since 2001-04-25
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Recent Reviews from Users

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    K = Knowledgeability    C = Clarity of Response    T = Timeliness    P = Politeness

User	Date	K	C	T	P	Comments
Kenneth	10/04/09	10	10	6	10	Thanks for the reply and answer!
Xue Ting	08/30/09	10	10	7	10
Anthony	05/21/09	10	10	10	10	thanks Socrates
bina	03/26/09	10	10	8	10
Sombra	02/22/09	10	10	10	10	Thank you so much, you made it .....

Recent Answers from Socrates

2009-09-30 Mathematical Expression:

$15 for 10 people for 10 days would work out to .15 per person per day , so that's not right $150 for 10 people for 10 days would work out to $1.50 per person per day , so this is one posible answer

2009-08-27 Family of functions?:

" x + x^2 + x^3 + ....+ x^n approaches x/(1-x)" x + x^2 + x^3 + ....+ x^n + ..... is a geometric series , with sum x/(1-x) , you should have seen this before you studied Mclaurin series. If not

2009-08-26 Family of functions?:

(Fn(x))/x = 1 + 4x + 9x^2 + ....+ (n^2) (x^(n-1)) = (x + 2x^2 + 3x^3 +....+ nx^n)' = ((x)( 1 + 2x + 3x^2 + ...+ nx^n-1))' = ((x) (x + x^2 + x^3 + ....+ x^n)' )' Since x + x^2 + x^3 + ....+

2009-07-22 Precalculus:

Your work is correct as far as it goes. The left side is cos A + 1 , as you have found . But the right side is sin^2/1-cos A = (1 - cos^2 A )/ (1 - cos A ) Factor the numerator (1 - cos^2 A )

2009-05-21 math:

The common denominator is 12ab (2a+3b)/3a = (4b)(2a+3b)/12ab = (8ab + 12b^2)/12ab (a-2b)/4b = (3a)(a-2b)/12ab = (3a^2 - 6ab)/12ab (a^2+b^2)/ab = (12a^2+12b^2)/12ab So (2a+3b)/3a - (a-2b)/4b