sparten

I did the same
ln(x+1)=2 ln(x-1)
ln(x+1)= ln[(x-1)^2]

(x+1)= (x-1)^2

but i was getting x as 7 or -6
not 2.3, what did i do wrong?
i guess u solved it wrong though u removed log correctly
u vl get a mar for this =P

sarahkhan

How many mark was it out of? the first ques?

ying27kia

Q1. 2.30
Q3. 1-x+(1/2)x^2
Q4. 201 and 330 something
Q5. y=-ln((3/2)-(1/2)e^2x)
Q6. two stationary points ; max point
Q7. -1/2 + i 1/2
Q8. ---
Q9. y=x-1 ; pie/4(e^2-1)
Q10. distance =6

correct me if im wrong

Ahmed Tariq

The answer to the binomial question was 1-x+(1/2)x^2

alphabravocharlie

Q1. 2.30
Q3. 1-x+(1/2)x^2
Q4. 201 and 330 something
Q5. y=-ln((3/2)-(1/2)e^2x)
Q6. two stationary points ; max point
Q7. -1/2 + i 1/2
Q8. ---
Q9. y=x-1 ; pie/4(e^2-1)
Q10. distance =6

correct me if im wrong
uhm weren't there 3 stationary points in q 6, as in pie/2, pie/12 and 5pie/12?

Gooners

i guess u solved it wrong though u removed log correctly
u vl get a mar for this =P

Yar i think that u guyz have quoted the question wrongly as evn by solving the above equation, u get answer as 0 nd 3 so hence i belive that Q 1 above is wrongly quoted here!
And my answer to binomial expansion Q was
------ 1-x-(3/8)x^2
I cnfirmed it with guyx at the center yesterday and all people said k yahi tha! :/
Can nyone else cnfirm?

smzimran

uhm weren't there 3 stationary points in q 6, as in pie/2, pie/12 and 5pie/12?
No, there were two and the point was minimum point, according to what i solved.

I think due to range bcoz range was less not 360,
though i dont exactly remember!

Gooners

uhm weren't there 3 stationary points in q 6, as in pie/2, pie/12 and 5pie/12?

Yes 3 stationary points!!! pi/2 was fr cos inverse of 0

Prisonbreak94

Yes 3 stationary points!!! pi/2 was fr cos inverse of 0
Agreed, 3 stationary pts for me too, got same answers as that other fella posting the answers! I will solve the paper with my tutor in a few hours so I can write the answers here if you want afterwards guys!

ying27kia

0 < x < 1/2 pie
so only 2 stationary points

Gooners

Guyz please see the Q1 quoted above by someone! Is it right or is the question quoted wrongly?
Cux if u solve the above equation u dnt get a quadratic equation and answer comes as 3 or 0 so hence
I think that it is wrongly quoted! Please see fr once!

sparten

Yar i think that u guyz have quoted the question wrongly as evn by solving the above equation, u get answer as 0 nd 3 so hence i belive that Q 1 above is wrongly quoted here!
And my answer to binomial expansion Q was
------ 1-x-(3/8)x^2
I cnfirmed it with guyx at the center yesterday and all people said k yahi tha! :/
Can nyone else cnfirm?
yes i got the same answer as far as i rember!

sparten

yes i got the same answer as far as i rember!

sparten

Yes 3 stationary points!!! pi/2 was fr cos inverse of 0
there were two stationary points.

sparten

I have the exam paper infront of me right now, it says 0 < x < pi
quote the bionomial question

sparten

Agreed, 3 stationary pts for me too, got same answers as that other fella posting the answers! I will solve the paper with my tutor in a few hours so I can write the answers here if you want afterwards guys!
yes plz post them as soon as ur tutor solves it!

Prisonbreak94

quote the bionomial question
Expand sqrt 1-x / 1+x in ascending powers of x up to and including term in x^2

Prisonbreak94

yes plz post them as soon as ur tutor solves it!
will do, no worries!