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Mathematics: Post your doubts here!

syed1995

syed1995

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If anyone gets the Question Paper.. link it to me. whenever you get it... 1 week after 2 week after.. I want to get it solved by my teacher so that I can confirm my working for the questions.
 
Mohsin41

Mohsin41

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Question 7 was horrible! not ever came in past papers since 2001... Only Add math students were able to understand the half question but time was short. Q11 was very easy :D.. Further paper all after the break...... Wish all of you good luck!
 
A

A star

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Mohsin41 said:
Question 7 was horrible! not ever came in past papers since 2001... Only Add math students were able to understand the half question but time was short. Q11 was very easy as integration of curve + integration of line BC. Where C was (2,0) :D.. Further paper all after the break...... Wish all of you good luck!
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dude dont post answer it is not allowed :O
 
gary221

gary221

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Dug said:
Q3)
i) Perimeter of sector = ½(Perimeter of rectangle)
2r + rx = 4a
Sinx = a/r
a = rSinx
2r + rx = 4(rSinx)
2 + x = 4Sinx
Sinx = ¼(2 + x)

ii) x1 = 0.8
x2 = 0.7754
x3 = 0.7668
x4 = 0.7638
x5 = 0.7628
x6 = 0.7625

x = 0.76 (2 dp)

Q4)
i)
q4eGgvM.png


ii) tan²x + (6√3)tanx - 5 = 0
Let y = tanx
y² + (6√3)y - 5 = 0

Now you have to use quadratic formula. I am sure you can do that!
Click to expand...

thnx a lot... i didnt c tht msg... :p :)
thnk u so much!
 
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Ashique

Ashique

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Esme said:
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w11_qp_32.pdf
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w11_ms_32.pdf

Q10 ii) I've made the Argand diagram and did the shading. How to do the last part.. "Find the greatest value of arg z for points in this region."
Thanks :)
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I need help in this too. It's driving me mad. What I would do I would draw it out on a graph paper, and count the boxes. *dead*
 
Rain

Rain

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Ashique said:
Can someone help me in question 6 of this paper: http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w12_qp_62.pdf

I don't understand these type of questions. How do we tell if two events are independent from each other?
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It is stated in the question that the die is "fair" which means that each event has an equal chance of occurring. If the die would have been "biased" then some events would have a greater chance of occurring from others. But it still wouldn't affect the outcome of the other events. Meaning the events are independent.

The events being independent means that one outcome doesn't affect the next outcome.
 
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