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omg, thankyou so much Shazer2! really appreciate it :) :)

yeah i did it heaps of times but didn't get the right answer :(

find the second derivative of V=(t+3)(2t-1)^2 please and thankyou :) :)

woah, thanks Nws m8 and Aysce :) :)

the curve f(x)= ax^4 - 2x^3 + 7x^2 - x + 5 has a stationary point at x=1. find the value of a

find the stationary points on the curve y=(3x-1)(x-2)^4 please show working out!! thankyou

keeeeeeeeeeeeeen!! pm please :)

omg, i actually understand how to do it now. thankyou Peeik :) :)

sketch a function with f'(x)>0 for x<2, f'(2)=0 and f'(x)<0 when x>2 so i know what the sketch looks like as seen from the answers, but i do not know why it's like that. can someone please explain to me how to interpret questions like these? please! i don't understand these types of...

Thankyou everyone that answered :)

evaluate a and b if y=x^3-ax^2+bx-3 has stationary points at x=-1 and x=2 please help!!!!! thankyou :)

thanks :) :)

find all values of x for which the curve f(x) =x^3-3x+4 is decreasing please help! thanks :)

thankyou very much Peeik :)

for those that asked, it is a question from my textbook for mathematics, not extension maths

(q^2-1)x-2qy+2aq=0 its so weird!

not the right answer :/ i don't know how to get the right answer

a) find the equation of the focal chord through Q the parabola is x^2= 4ay, the focus is (0,1) and Q is (2aq, aq^2) also, b) prove that the latus rectum is 4a please answer :) i'm so desperate

find the length of the focal chord that meets the parabola at (2, -1/3) -the equation of the parabola is x^2=-12y -the directrix is y=3 please show the working out of this as well as the answer! i have tried doing this question many times but failed!

Thankyou very much! you're awesome :)