Mathematics

Find vertical asymptotes

f(x) = x + 1/x^2 - 8x + 7 I know its 1,7 but I have no idea how they got that. can someone help?-Vertical asymptotes will occur when the denominator equals zero when the numerator doesnt. By setting

Find the standard form????????????

Find the standard form of the equation of the parabola with the given characteristics. Vertex: (8, -5); focus: (8, -3) thanks-Since the vertex is lower on the y axis than the focus, and x is the sa

X(x-1) = 0 and x(x-1)=2 Best answer please

does the x in front of the parenthesis always = 0 or do you distribute first. Thanks for any help.-The x in front wont always equal 0 but it can. What the equation x(x-1)=0 is saying is that x = 0 and

G(x)=3^x, write an expression for (g(x+h)-g(x))/ h

Another question I am having major trouble with. I have no idea how to do it. If you guys could help me, it would be much appreciated.-There are all kinds of equivalent expressions. I dont see that an

Find a unit vector that has the same direction as the given vector.

9i - j + 3k-√(9^2 + 1^2 + 3^2) = √91 unit vector = (9/√91) i - (1/√91)j + (3/√91)k-Just divide the vector by its own length: (9i - j + 3k)/(sqrt(9^2 + (-1)^2 + 3^2)) = (9sqrt(91)/91)i - [sqrt(91)/91

Have i done this simultaneous equation correctly

G = 4F2 (SQUARED) -3 G+ 11F = 0 (4F2 - 3) + 11F =0 4F2 - 3 + 11F = 0 I DONT KNOW HOW TO FACTORISE THIS, IS IT POSSIBLE? AM I WRONG?-I DONT KNOW HOW TO FACTORISE THIS You can always use the quadrat

How do I differentiate this

How do I differentiate y = arccos (1-2x^2) with respect to x (with a simplified answer too)? Detailed steps would be most appreciated.-F.Y.I arccosine is inverse cosine----cos^-1 u so i have this eq

Math IGCSE questions. Inversely proportional

Given that y is inversely proportional to x2 (X squared), and that y=2 when x=5. a) Find an expression for y in terms of x b) calculatei) the value of y when x=2 ii) a value of x when y=0.5 Thanks :)

HOW TO FIND AN ANGLE OF CIRCLE

it looks like this...... http://www.flickr.com/photos/62069060@N02/5650497812/in/photostream find the measurment of angle A-Not enough information without additional assumptions. I will assume that

Why must a number that is a multiple of a number also be a multiple of the previous multiple's multiple

So, I know the question sounds a bit confusing? Let me give an example... 8 is a multiple of 4 4 is a multiple of 2 So why must 8 also be a multiple of 2? I know this is a simple topic and I underst

Logarithm function help

Could someone explain to me what a logarithm is? What Im reading in my material, is when the function grows etc. which is no help at all. Lets say we have something like this: y=log(subscript)2 x, ho

Algebra help!complete the square

complete the square to form a perfect square trinomial x squared+5x+_______-(5/2)² = 25 / 4 We are basically looking for b² as in (a + b)² = a² = 2ab + b² a² = x², so a= x 2ab = 2(x)(b) = 5x 2b =

Calculus: area between 2 curves

recall that integral (ln x)dx = x lnx - x + C find the area of the region in the first quadrant bounded by the graph of y = lnx, the line tangent to y=ln x at x = 3, and the x- and y-axes.-Hello y(3)

Which class is tougher, calculus 3 or linear algebra

I was thinking about taking cal 3 and physics 2 together during the summer, but if linear algebra isnt too hard, i might just hold physics off til fall semester-I took linear alg in first term of univ

How do i do this any help please

f(x, y , z) = xy^2 + 2yz^3 evaluate ∂.f / ∂.x = at (x , y , z) = (6, -1 , 1)................. evaluate ∂.f / ∂.y= at (x , y , z) = (6, -1 , 1)................. evaluate ∂.f / ∂.z = at (x , y , z