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yer that, it would be great thanks :D

does anyone mind put all the parametric equations general forms plz? that wud be a great help to everyone having trouble (probs only me)

u sure u just sub randoms? coz it doesnt seem right like i dont know the steps involved

wt about 7 nd 8 when it's the reverse?

Thanks for some useful help :D I have a problem constructing parametric equations... >< :$ and a few cartesian equations. 1. x=t2-2t, y=t2+2 2. x=t2+t, y=(t2/2) - 3t 3. x=3[t+(1/t)], y=4[t-(1/t)] 4. x=1/2 (at+a-t), y=1/2 (at-a-t) 5. x=7(sec@+tan@), y=7(sec@-tan@) 6. x=t+...

i dun care about the answer i just want the steps right

i have the answers but i actually need the worked solutions sorry :(

problems related to Locus not sure if it fits into parametrics though... :( 1. The area o the triangle enclosed by a variable line L and the axes is 8square units. M is the midpoint of the line segment on L cutting by the axes. Find the equation of the locus of M. 2. A point A moves on...

oh whoops my bad :( hmm

Hmm you know for the limiting sums for sequences and series... What happens if |r|>1? instead of it being -1<r<1? Because i have that problem in my Geom.Seq. qns for limiting sums

Can anyone explain the concept of 'navigating the global'?

u might wanna try 'Lost in Translaton :D'

Omgosh i cant believe i'm asking this but i need some help on sequences and series 1. On the 1st January, 1957, a person joins a superannuation fund by investing $3000 at 9%p.a. compound interest. A similar amount is invested at the beginning of each subsequent year until the person retires on...

Thats coz it meets at the tangent right? what about the other two?

Hmm i might just add some more parametrics questions (well at least i think they're parametrics questions coz the stupid sheet just ses "Parabola:... ><') Okay first one Find the equation of the tangent at the point P(8,2) on the parabola x2=32y. If this tangent meets the tangent at...

U sure because i tried switching it around and i didnt get the answer either so now wat?

Re: Differentiation Q well it's apparently still solvable... like the point lies on the line of the tangent but isnt actually touching the curve... so hmmm iono it should be solvable i jsut dunno how

Re: Differentiation Q Ahh well man i havent been on this for ages ummm I have this question x2 + xy2 = 12; (1,3) and ur meant to find the eqns of the tangent and normal to the given curve at hte indicated point but this question is wierd I tested the curve by subbing in the point...

Re: Differentiation Q I have no idea why but both answers are wrong for some reason

Re: Differentiation Q Hmm I'm having trouble with a differentiation problem the question is g(t) = (4t2+7)2(2t3+1)4 Find the derivative. I can get the first bit using chain rule but i cant get the rest..