Maths, Addmaths and Statistics: Post your doubts here!

[***amd***]

***amd*** yar bhai please ye bata do.
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_w13_qp_22.pdf
Question 8 ci?

angle AOB = 360 - 310 = 50
angle OAB = (180-50)/2 [since triangle OAB is isoscles] = 65
sin 65 = hieght of triangle OAB / 6
hieght of triangle OAB = 6 * (sin65) = 5.4378
w = hieght of triangle + radius of circle (http://sketchtoy.com/61164692)
w = 6 + 5.4378 = 11.4378

 

[Awesome12]

What is an identity matrix?

 

[***amd***]

You are beyond amazing with explaining Maths.

***amd***, yeh Mr Ghumman se zyada acha parhata hai na?

tbh, no

 

[sid2333]

Yes. I have also solved the first part. How can we find the volume of this prism? And surface area???

Bi is 1/2 (4) (11) (sin 125)

 

[***amd***]

What is an identity matrix?

its the unit matrix

 

[Kamihus]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s13_qp_22.pdf
sec b q9 (b) hw to find SR?

Don't show me this deadly question ever again

 

[Furqan Azam]

Somebody Plz explain Q10 (a) (i) of the Paper ON 2013 4024/21:
If you could explain a i to me then It may help me to do the rest of the question:
http://papers.xtremepapers.com/CIE/...Calculator Version) (4024)/4024_w13_qp_21.pdf
http://papers.xtremepapers.com/CIE/...D (Calculator Version) (4024)/4024_w13_er.pdf

 

[Awesome12]

its the unit matrix

in English please: p

 

[asadalam]

What is an identity matrix?

Matrix (1.0 0.1)
Any matrix multiplied by its inverse gives identity matrix.

 

[***amd***]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_w13_qp_22.pdf
Question 8 part ci

sumbdy post a Q, n body replies

***amd*** yar bhai please ye bata do.
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_w13_qp_22.pdf
Question 8 ci?

the same sumbdy post the same Q adding my name in her post
BOOM! shower of replies!

From O to mid of AB: Apply trigonometry
Length/6= cos 25 (Subtract the angle from 360 and divide by 2)
Add 6 as it is the radius and will be the same from O to the point written 12.
This length is same as w.

View attachment 44053

angle AOB = 360 - 310 = 50
angle OAB = (180-50)/2 [since triangle OAB is isoscles] = 65
sin 65 = hieght of triangle OAB / 6
hieght of triangle OAB = 6 * (sin65) = 5.4378
w = hieght of triangle + radius of circle (http://sketchtoy.com/61164692)
w = 6 + 5.4378 = 11.4378

 

[funky brat]

What is an identity matrix?

(1 0 0 1)

 

[exploded diper]

http://sketchtoy.com/61164750



this question was very well answered by me.....check it out..

 

[Awesome12]

(1 0 0 1)

Matrix (1.0 0.1)
Any matrix multiplied by its inverse gives identity matrix.

You mean this

(1 .... 0)
(0.... 1)

 

[***amd***]

in English please: p

me punjabi bol raha hun?
well, it is
(1 0
0 1)

 

[exploded diper]

What is an identity matrix?

is this u?

 

[Awesome12]

http://sketchtoy.com/61164750



this question was very well answered by me.....check it out..

 

[peacce]

Don't show me this deadly question ever again

 

[Awesome12]

is this u?

Why?

 

[funky brat]

You mean this

(1 .... 0)
(0.... 1)

Yeah, exactly.

 

[Mahnoorfatima]

sumbdy post a Q, n body replies

the same sumbdy post the same Q adding my name in her post
BOOM! shower of replies!

Looks like I'll have to use this strategy more often.