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Calculate 1 + i +i^2 + i^3 +...+ i^10

Posted by n1kaa on September 29, 2010 at 6:00 PM via web.

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Solve lim[ln(1 + kx)]/x if x--> infinite.

Posted by xuediot on September 29, 2010 at 5:51 PM via web.

Determine the equation of the line d given by the point A(2,-4, 1) and the directory vector...

Posted by dollydoll on September 29, 2010 at 5:45 PM via web.

If the function f:(0; infinite)-->R f(x) = (1/2*ln^2x) prove that f is convex and find out...

Posted by demadcrazy on September 29, 2010 at 5:39 PM via web.

What kind of triangle has the relations between a, b, c, sides: (3^1/2)*a - (3^1/2)*b = c a + b...

Posted by drole on September 29, 2010 at 5:27 PM via web.

Solve [x^2 + x + 1] = x + 1

Posted by zuzuman on September 29, 2010 at 5:13 PM via web.

Solve the inequation: x^2-4x-12>0

Posted by fromici on September 29, 2010 at 5:03 PM via web.

(X, Y) is equidistant from (0,4) , (4,2) and (6,3). What are X and Y?

Posted by smaryeden on September 29, 2010 at 3:01 PM via web.

What is the general equation of an ellipse and how can we say that it is a circle?

Posted by manglinsir on September 29, 2010 at 3:00 PM via web.

What is the area of the triangle formed by the points (0,5) ( 8,2) (0,16)?

Posted by tthomsg on September 29, 2010 at 2:58 PM via web.

Given the system of equations 8x+7y+4=0 and 2x+9y+1=0, find x and y.

Posted by guptanoop on September 29, 2010 at 2:57 PM via web.

Where do the lines x+4y=7 and 5x+2y=10 intersect?

Posted by aplewis on September 29, 2010 at 2:56 PM via web.

Determine the remainder when P(x)=x^5-2x^3+3x-3 is divided by x^3-x using the Remainder...

Posted by siujo1 on September 29, 2010 at 1:40 PM via web.

Evaluate the numbers. X+46/7=46 Y*4/5=45 -12-(-60)+x=72

Posted by meg923 on September 29, 2010 at 1:34 PM via web.

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Is there any easy way to find prime numbers? I need it for a small assignment.

Posted by jazzmaster on September 29, 2010 at 1:24 PM via web.

Convert 10111 to a form with base 3 and base 4?

Posted by estanbuen on September 29, 2010 at 1:21 PM via web.

A and B are two binary numbers, A= 101010 and B= 110101, what is their sum?

Posted by stringy on September 29, 2010 at 1:17 PM via web.

If the diagonals of a rectangle meet at 60 degrees, what can be said about the sides of the...

Posted by blossombud on September 29, 2010 at 1:14 PM via web.

If 40 students in a class get marks that are an AP, what is the sum of all the marks, if the...

Posted by cattleya on September 29, 2010 at 1:11 PM via web.

The limit represents the derivative of some function f(x) at some number a. Select an appropriate...

Posted by tgl223 on September 29, 2010 at 11:58 AM via web.

Show that if a sequence equals 0 for infinitley many n, then either it converges to 0, or it is...

Posted by tylerkristine on September 29, 2010 at 11:44 AM via web.

What are the tw numbers that root (5) lies between them?two numbers in one decimal place

Posted by doda96 on September 29, 2010 at 6:39 AM via web.

Solve for x : 1/(x^2+6x+9) + 1/(x+3) = 4/9

Posted by sixpenpencil on September 29, 2010 at 2:40 AM via web.

Given that x1*x2 = - 3 calculate t if x^2 - 2x +t = 0

Posted by leeaeel on September 29, 2010 at 2:27 AM via web.

What would be the value of x, y, & z in a addition of a 5 digit number as 3xyz9 with a 4...

Posted by syedajmain on September 29, 2010 at 2:19 AM via web.

Find the solutions of the equation (2x+1)^2-(sqrt2x-1)(sqrt2x+1) +1=0

Posted by sirserie on September 29, 2010 at 2:17 AM via web.

Solve the equation (z+z')/z*z'=z+i. The roots are in the complex numbers set.

Posted by realcomplexnr on September 29, 2010 at 2:03 AM via web.

Prove the inequality a^2 + b^2 + 4a - 2b + 5 >=0

Posted by deuxtoi on September 29, 2010 at 1:53 AM via web.

Which is the indefinite integral of f(x)=sin5x*cos3x ?

Posted by undoitu on September 29, 2010 at 1:45 AM via web.

Calculate the indefinite integral of y = x^2/(x^2-9)?

Posted by cartoffried on September 29, 2010 at 1:31 AM via web.

Calculate sin13pi/3, cos33pi/4 and sin101pi/2

Posted by ggenius on September 29, 2010 at 1:15 AM via web.

Which is the indefinite integral of f(x)=(sinx^3 - 4)/(1-cos2x) ?

Posted by istetz on September 29, 2010 at 1:04 AM via web.

Verify if sin^3 x - cos^3 x = (sinx - cosx)(1 + sinxcosx)

Posted by greynose on September 29, 2010 at 12:19 AM via web.

Prove the equality for any real x ( sinx + cosx )^2 = 1 + 2sinx*cosx

Posted by lillyan on September 29, 2010 at 12:13 AM via web.

Find the quadratic whose graph is passing through the points (-1,3), (0,-1), (2,4)

Posted by potziunea on September 29, 2010 at 12:00 AM via web.

Determine the function f(x) if f'(x)= 4x^3 + 2x.

Posted by pavelpimen on September 28, 2010 at 11:34 PM via web.

Calculate the intercepting point of the lines x+7y=21 and 2x-y=11

Posted by bibiloi on September 28, 2010 at 11:26 PM via web.

Explain the golden triangle .

Posted by greenturtle on September 28, 2010 at 10:14 PM via web.

What type of function is F(x)=(x-2)^1/2,x>=2 ; F(x)=(2-x),x<2.

Posted by museinspires on September 28, 2010 at 10:10 PM via web.

Determine the length of AB and AD sides from ABCD parallelogram with AD = 3/5AB if ABCD's...

Posted by landishigh on September 28, 2010 at 10:00 PM via web.

Find the solution for the equation [(x + 7)^1/2] + [ x - 1)^1/2] = 4

Posted by fryvonne on September 28, 2010 at 9:50 PM via web.

Can somebody give me steps on how to go about doing formula rearrangement? (algebra)

Posted by angel-girl on September 28, 2010 at 9:37 PM via web.

If 3sinx = 2cosx determine tanx using right angle triangle.

Posted by essesy on September 28, 2010 at 9:35 PM via web.

Solve the system 2x + 3y + 4z = 0 4x + 9y + 16z = 0 8x + 27y + 64z = 0

Posted by catbyshe on September 28, 2010 at 9:29 PM via web.

Find the parameter a that belongs to R if parabola y = (a + 1)*x^2 + a*x + 3 and the line y = x +...

Posted by fortunee on September 28, 2010 at 9:13 PM via web.

Given the polynomial expression E = x^4 + 4 determine the sum of the roots x1 + x2 + x3 + x4 .

Posted by solvedphyz on September 28, 2010 at 7:55 PM via web.

Determine tg(a+b) if a belongs to (0;pi/2) and b belongs to (pi/2;pi) and sina=1/2, sinb=2/3 .

Posted by starshippiy on September 28, 2010 at 7:46 PM via web.

Solve the system with two methods: 5x + 2y =10 x - 8y =12

Posted by lessoflot on September 28, 2010 at 7:30 PM via web.

Determine the median in ABC triangle that stats fom A vertex if A(1;2), B(2;3), C(2;-5).

Posted by electrika on September 28, 2010 at 7:22 PM via web.

Knowing f(-1) = 1, f(0) = 1, f(1) = 3 determine the second grade function.

Posted by for3cast on September 28, 2010 at 7:12 PM via web.

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