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Q14 Solutions (1 Viewer)

Sy123

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Since largest co-efficient is x^{4n-2k}, we cannot go beyond k=n in order to maintain x^{2n} co-efficient
Add all side by side



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Hopefully that is correct
 

Locus

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Since largest co-efficient is x^{4n-2k}, we cannot go beyond k=n in order to maintain x^{2n} co-efficient
Add all side by side



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Hopefully that is correct
Don't we sub in t1 approximation from part i)?
 

Sy123

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Last edited:

Locus

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for the water droplet
Can you integrate the dV/dt -> and you get like v = (-10^-4)(4.pi.r^2)t + c
Sub in conditions
Sub in r (from subbing in V in the formula volume formula given) to get the answer
 

Sy123

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for the water droplet
Can you integrate the dV/dt -> and you get like v = (-10^-4)(4.pi.r^2)t + c
Sub in conditions
Sub in r (from subbing in V in the formula volume formula given) to get the answer
r is a variable though
 

johnnysk

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for the water droplet
Can you integrate the dV/dt -> and you get like v = (-10^-4)(4.pi.r^2)t + c
Sub in conditions
Sub in r (from subbing in V in the formula volume formula given) to get the answer
Lol that's what I did. What was ur answer though ?
 

Locus

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Yeah ... i think i got it wrong ... obviously didn't use part a_
 

Locus

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Do you think i could get 1 mark for that question ....
 

Sy123

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panda15

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That feeling when you get all of Q14 out :)
 

Parvee

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seems like sy is beating carrot to it for MX1 :p
 

Locus

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for the solution the f)
Would you lose a mark if you didn't factorise out the 1/3?
 

Sy123

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1) c

2) d

3) c

4) d

5) a

6) b

7) a

8) d

9) b

10) c
 

Sy123

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for the solution the f)
Would you lose a mark if you didn't factorise out the 1/3?
If your final answer is equivalent then you won't lose the mark
If the answer is wrong then yes you will lose something
 

superSAIyan2

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for 11f) did you have to type the actual calculator value or can you leave it as 1/3 (arctane - pi/4).
 

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