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1. ### Hey experienced Math Teachers from Canada possibly, I have a question; 10 points?

...a nice head start but after a while, everything will be new. He really should take AP Stat. Of course the quality of the tgeacher will have some effect on what...

1 Answers · Science & Mathematics · 26/12/2009

2. ### Linear Algebra Proof - Matrices/Ker/Null/Dim/Eigenvalues - If A is similar to B, then dim(Null(A)) = dim(Null(B))?

...observe, Bv_i =0 PAP^-1 v_i = 0 [since B = PAP^-1] AP^-1 v_i =0 [multiply both sides by P^-1] A(P^-1 v...

1 Answers · Science & Mathematics · 30/11/2015

3. ### Find the solutions of x if 6x^4-34x^3+x^2+7x-1=0. Thanks.?

... : y^4 + (4p+a) y^3 + (6p^2+3ap+b) y^2 + (4p^3+3ap^2+2bp+c) y + p^4+ap^3+bp^2+cp+d if we take 4p+a=0 or p=-a/4, the coefficient of y^3 becomes...

2 Answers · Science & Mathematics · 07/01/2013

4. ### Find the distance from the point A(-2,1,2) to the plane 3x-2y+5z+10=0?

Your solution is correct as well as the solution in your text book. Note that you put absolute values calculating. As vectors AP and PA differ just by sign we can use any of them.

1 Answers · Science & Mathematics · 01/09/2011

5. ### Find the limit lim->0 (1-cos5x)/(cos7x-1)?

Hi You can simplify [1 - cos(5x)]/[cos(7x) - 1] by multiplying the numerator and denominator by the conjugates of both of them: [1 - cos(5x)]/[cos(7x) - 1] = [1 - cos(5x)][1 + cos(5x)]/{[cos(7x) - 1][1 + cos(5x)]} = sin^2(5x)/{[cos(7x) - 1][1 + cos(5x)]} = sin^2(5x)[cos(7x) + 1]/{[cos(7x) - 1][cos(7x...

1 Answers · Science & Mathematics · 17/10/2010

6. ### how do you solve lim x→∞ 1/（x²+1）^(½) with l'hopital's rule?

lim(x->∞) 1/(x²+1)^(½) = 0 Edit: L'hospital's rule can not be applied since there is no indeterminate condition, and your answer is wrong.

3 Answers · Science & Mathematics · 06/02/2011

7. ### How can I calculate the P-Value?

... using a graphing calculator. I've taken AP Statistics and statistics at university and in both classes, I...

1 Answers · Science & Mathematics · 17/12/2008

8. ### DO YOU THINK THERES AN ENGLISH PROF WHO CAN DO MATh?

...ultimately went to Harvard. He made 5's on both the AP English and Calculus BC exams and has since...

5 Answers · Science & Mathematics · 23/01/2009

9. ### Coordinate GeometryFind the center of the circle that you can circumscribe about triangle ABC.?

...in the distance formula to get the expressions for the distances AP, BP and CP in terms of x and y. Equate the expression...

1 Answers · Science & Mathematics · 27/08/2010

10. ### anyone know how to solve this?

OB perp. to AQ OD perp. to AP OB=OC=OD ang.BOC = 1/2 ang.BEC BC parallel to ED BA = AD ang. COD = 1/2 ang.CED and some more...

2 Answers · Science & Mathematics · 26/07/2010