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yere but what does e come out to be thats were im having trouble

Can't figure out x^2 + 16y^2 =25 Sketch it showing features. Thanks in advance

I got the right answer Thanks for ur help.

i know that b is greater than a and thus making it a vertical ellipse. but the foci are inside the ellipse. i just saw what i did wrong root 3 = b but (0,1) IS JUST INSIDE IT. Thanks for posting anyways

x^2 / 2 + y^2 / 3 =1 Sketch but im confused because i got the foci to be outside the ellipse. Please help!

yere thanks

Find the area enclosed between the curve y=x(x^2 -2) and the x axis. The answer is 2 units^2 Thanks in advance.

thanks for that i didnt see one of the negative signs there is 3{for the -1 value} of them still making it -1 Thanks alot

no for that i got 1 / 2 du - | ___ 2 /-1 3u^2 But i think thats the same but im geting 1/12 as answer

[Integration symbol]high 1 low 0 of x+1/3(x^2 + 2x -1)^2 dx , use u =x^2 +2x -1 Answer is -1/4 But im geting 1/12 Please help!

sorry guys i put goes through point (2,1) but i read the text book and its (2,-1) I've worked through it and have completed it, thanks for your help.

o.k no worries any ways, thanks

thats what it says in the back on the book

The answer is y= -1/2(x^2-1) -5/6 not 7/6 :S

If the gradient of a curve is given by dy/dx = x/(x^2-1)^2 and the curve passes throught (2,1), find the equation of the curve. Thanks in advance.

I know when i looked at it and got y=0, i was like this is not going to work. i'll work on it and see if it comes out to something that looks right I've had a look and came up with the same, the equation of the tangent to be x=2 and the equation of the normal to be y=0 THANKS ALOT

Need help with this x^2/4 +y^2/3 = 1 Find equation of the tangent and normal at x=2 y has to be found out using the equation of the ellipise. Thanks in advance.

i did english extension but dropped it for 4u maths because it was so boring and got to know how to bullshit a question for pages and pages. are any of the maths teachers at your school good at 4 u maths?? If you have any problems post them up and get some help? If you get a tutor make sure its...