Qualification > Math

[CIE] All Pure Mathematics (P1, P2 and P3) doubts here !

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SkyPilotage:

--- Quote from: iluvme on May 07, 2011, 06:41:59 pm ---Yup, and the angle between them will be zero.


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thanks..

Tohru Kyo Sohma:

--- Quote from: SkyPilotage on May 07, 2011, 09:31:59 pm ----If you want to plot the point of the line just substitute x with any value from 0 to pi. ex  0.25pi+2y=pi--->0.75pi=2y find y and u have a point....
Do the same for another value of x and u get another point then join them to draw the line...
-Regarding the signs you put them on a number line and put the values on the number...outside the range of values is the same sign as a(coefficiient of x^2)....
for example if you have : x^2-x<0 so u put in the number line x=0 and x=1 soo outside this range is +ve since x^2 is +ve and inside the range is -ve. Since the question asks for <0 (-ve) it is 0<x<1. I hope that helps.   

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i still didnt get question number 2 ......can u like solve it a take a picture and upload it....i think if i see it i can understand better!! :-[

SkyPilotage:

--- Quote from: mimiswift on May 07, 2011, 10:12:31 pm ---i still didnt get question number 2 ......can u like solve it a take a picture and upload it....i think if i see it i can understand better!! :-[

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'
yh i know but i dont have a scanner so we will have to wait for someone else to upload the pic ..

Tohru Kyo Sohma:

--- Quote from: SkyPilotage on May 07, 2011, 10:15:35 pm ---'
yh i know but i dont have a scanner so we will have to wait for someone else to upload the pic ..

--- End quote ---
i think i kind of got the answer but im still not sure if the graph is right..its ok!

iluvme:
Here you go.

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