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Maths Paper 4.. " How On Earth" DOUBTS QUESTIONS!

M

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dubi2pro

dubi2pro

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My Name said:
BEST OF LUCK FOR EXAMS
oh! one more thing
i think u oanic wen u see algebra
i think
i panic to
sooo
just tell urself dubipro u can do it
INSHAAALH u will!
there are alot of question i felt icant do but wen u put ur mind to it u can!
LETS HOPE PAPER GOEAS WELL
AMEEEN
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Hahaha thanks! you too! :D
 
Ayeshah.ahmed

Ayeshah.ahmed

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dubi2pro said:
This one :ss
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for the paper "w13_qp_42" the values of a b and and c are obtained as follws
its
2/x^2-1/x-3x=10-3x right
so what you have to do is to remove the fractions that are there on the equation so that you can easily solve it out
to remove the fractions multiply "x^2" THROUGH OUT the equation
where thea answer will be 2-x-3x^3=10x^2-3x^3
from here collect he like terms and get the final equation which will be 10x^2+x-2 from here you get
a=10
b=1
c=-2
best of luck for tomorrow i hope we all do it well...I'm nervous!
 
dubi2pro

dubi2pro

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Ayeshah.ahmed said:
for the paper "w13_qp_42" the values of a b and and c are obtained as follws
its
2/x^2-1/x-3x=10-3x right
so what you have to do is to remove the fractions that are there on the equation so that you can easily solve it out
to remove the fractions multiply "x^2" THROUGH OUT the equation
where thea answer will be 2-x-3x^3=10x^2-3x^3
from here collect he like terms and get the final equation which will be 10x^2+x-2 from here you get
a=10
b=1
c=-2
best of luck for tomorrow i hope we all do it well...I'm nervous!
Click to expand...
Thanks! :D


paper will be great inshhallah!
 
Ayeshah.ahmed

Ayeshah.ahmed

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so heres how it worked
they said "total number of lines to draw the FIRST n diagrams" so make sure you understand this statement before you proceed then you have the "first 2" daigrams their tota of their lines is 12 and this is the total of the first 2 diagrams as in (n diagrams) then equat it if n is 2 then substitute n into its places im sure you will end up with 8a+4b+2=12
then for the next equation ou do the same it will be the total of the first 3 diagrams therefore you know that n is 3.then you count the lines in the third diagra amd add it to the number of lines in the first and second diagram you will get 30
since we knlw n is 3 substitute n
you should get 27a+9b+3=30
i hope my explanation is clear and i hope i helped :) best of luck
 
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