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guys i got a tiny problem in the january 2004 paper in 2b (iii) where it asks u u write down an equation for L2 in which z occurs only once

Context

the locus L2 consists of the points representing complex numbers z for which |z-9j| = 2|z-12|

ps before that question i was asked to show that L2 is a circle. i did the eqaution i obtained was (x-16)^{2}+(y+3)^{2} = 100

pls help before my exam on tues

thanx

Context

the locus L2 consists of the points representing complex numbers z for which |z-9j| = 2|z-12|

ps before that question i was asked to show that L2 is a circle. i did the eqaution i obtained was (x-16)

pls help before my exam on tues

thanx

Hey I'm doing the same question, but I got stuck at part (i)

How do you know the third asymptote of y= (x-9)/(x+7)(x-5) is y=0

Somehow, I've managed to get y=1/(x+2)

How do you know the third asymptote of y= (x-9)/(x+7)(x-5) is y=0

Somehow, I've managed to get y=1/(x+2)

Actually, what am i talking about, I doing the same paper, but got stuck on question one.

How do you know the third asymptote of y= (x-9)/(x+7)(x-5) is y=0

I presume chubby has done this, please could you help?

How do you know the third asymptote of y= (x-9)/(x+7)(x-5) is y=0

I presume chubby has done this, please could you help?

ok natsy

basically what u got to do is divide the whole thing by the highest co-efficeint of x from the denominater to every term to amd bottom (in this case x^2) so the equation u obtain.............. substitue any high number say 10000000 as x. overall the answer will tend towards 0. so y=0 is teh asmptote. hope u get what i mean.

basically what u got to do is divide the whole thing by the highest co-efficeint of x from the denominater to every term to amd bottom (in this case x^2) so the equation u obtain.............. substitue any high number say 10000000 as x. overall the answer will tend towards 0. so y=0 is teh asmptote. hope u get what i mean.

Thanks- I'm just panicking now. I forgot to substitute the large x.

What can i say, except too many maths papers-ironic i know. Exam on Tuesday...

What can i say, except too many maths papers-ironic i know. Exam on Tuesday...

Yep, apart from the initial (albeit rather large) setback, my graph is now correct.

I'm halfway through the second question, but finding hard. But I'm doing FP1, so maybe that's why (hopefully)...

I'm halfway through the second question, but finding hard. But I'm doing FP1, so maybe that's why (hopefully)...

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can someone please explain what principle domain is and why the answer is a not c?Maths

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