Maths C2 discussion!! :)

[Alla' Abu-Sultaneh]

I used Pythagoras for PT and I got 20

me too! i hope it's right

 

[Alla' Abu-Sultaneh]

what was the trapezium question's last part... the one which was 4+5?(x^2+1) i think... was the answer 18.24?

 

[Saad96]

what was the trapezium question's last part... the one which was 4+5?(x^2+1) i think... was the answer 18.24?

Yeah I put that. What was the area of the graph? I put 128/3

 

[cardude456]

what was the trapezium question's last part... the one which was 4+5?(x^2+1) i think... was the answer 18.24?

i did it on my calculator and got 18.24 but didnt know how to show it

 

[ahmed soliman]

some of my friends are telling me that the equation of circle they have assumed that the centre is exactly to the left of the point (0,9)

 

[ahmed soliman]

and how many angles did everyone get for tan

 

[Alla' Abu-Sultaneh]

Yeah I put that. What was the area of the graph? I put 128/3

it was 36... you didn't complete the question

 

[cardude456]

some of my friends are telling me that the equation of circle they have assumed that the centre is exactly to the left of the point (0,9)

yh.............it was

 

[Saad96]

I got center of the circle to be (-5,9)

 

[Alla' Abu-Sultaneh]

how did everyone factorize 4cos^2 -2cos-1?

 

[cardude456]

it was 36... you didn't complete the question

Thank god...........i thought i did something wrong!!

 

[cardude456]

how did everyone factorize 4cos^2 -2cos-1?

Used my calculator

 

[Alla' Abu-Sultaneh]

Thank god...........i thought i did something wrong!!

you look like you did well! i hope you get a good mark!

 

[aniekan]

^___^ horrible I made weird and wonderful mistakes :0 ( so many efcs)

 

[Saad96]

Were the angles 144 288 and two others

 

[cardude456]

you look like you did well! i hope you get a good mark!

Thx........inshallah all of us will get good marks!!!

 

[k.k.sibtain]

some of my answers
area garden - 262.5
perimeter - 80.2
area graph - 148/3
minimum point - 4,-28
a^5/8

Yes!! All our answers match! And half my center got the same answers

 

[IGCSE Abdullah]

what was the eq of the circle???
and what abt the (3^y) something question??
n trigonometry answer??
n ????

 

[Saad96]

Trigonometry answers????

 

[cardude456]

what was the eq of the circle???
and what abt the (3^y) something question??
n trigonometry answer??
n ????

Eq of circle

(x+5)^2 + (y-9)^2 =25