Maths, Addmaths and Statistics: Post your doubts here!

[Haris Bin Zahid]

No idea ..

But u'v appeared in add. maths exam

 

[asd]

Thanks alot But arent there other formulas for each type of transformation? Cuz we have done like specific kind of matrices for each kind of transformatin e.g for 90 degrees clockwise rotation the transformation matrice is
(0 1)
(-1 0)

Umm, yes.
For shear along x-axis it is :
(1 k)
(0 1)
And for shear along y-axis it is:
(1 0)
(k 1)
For stretch, parallel to x-axis (y-axis as invariant) it is:
(k 0)
(0 1)
And for stretch parallel to y-axis(x-axis as invariant) it is:
(1 o)
(o k)
For double stretch:
(k1 0)
(o k2)
where k1 is the stretch factor for stretch parallel to x-axis, and k2 for stretch parallel to y-axis
For rotation, i already posted the shortcut methods.

 

[Spidey21]

CAN SOME ONE TELL ME THAT CAN I USE ADD MATHS FORMULAS IN MATHS??
For instance they say find the gradient of
x-3y=6
can i differentiate it although without calculating i can tell its -1

 

[bogus]

Q. Given that f(x)=2x^2-5x-7.
And then.......sketch the graph of y=|f(x)| for -2<=x<=4.5. How to remove this modulus sign???
MustafaMotani, bogus, syed1995 -plz help.

this isn't normal 4024 syllabus math for sure ... where did u get it from??? Plus I have absolutely no idea

 

[rabiafarooq101]

how many papers should one do for an A*???

 

[Haris Bin Zahid]

this isn't math for sure ... where did u get it from??? Lus I have absolutely no idea

You take Add. Maths...isn't it?

 

[syed1995]

CAN SOME ONE TELL ME THAT CAN I USE ADD MATHS FORMULAS IN MATHS??
For instance they say find the gradient of
x-3y=6
can i differentiate it although without calculating i can tell its -1

actually the gradient for that will be -1/3. lol and no we can't .. we can only check our answers with that .. but nothing more than that ...

I wish we could use differentiation in geometry, integration in finding the area under curves and that y-y1=m(x-x1) .. would make like so much easier ..

 

[bogus]

You take Add. Maths...isn't it?

noooppee

 

[syed1995]

this isn't normal 4024 syllabus math for sure ... where did u get it from??? Plus I have absolutely no idea

that's addmaths. and the poor guy doesn't know that you didn't had addmaths

 

[Haris Bin Zahid]

noooppee

Oh really sorry!

 

[asd]

actually the gradient for that will be -1/3. lol and no we can't .. we can only check our answers with that .. but nothing more than that ...

I wish we could use differentiation in geometry, integration in finding the area under curves and that y-y1=m(x-x1) .. would make like so much easier ..

Was about to correct the gradient, and then i saw your post.

 

[bogus]

Oh really sorry!

no i'm sorry for u... add math ka paper khatam nahin hooa???

 

[A star]

CAN SOME ONE TELL ME THAT CAN I USE ADD MATHS FORMULAS IN MATHS??
For instance they say find the gradient of
x-3y=6
can i differentiate it although without calculating i can tell its -1

oh please do u really need addmath for that

how many papers should one do for an A*???

5 -7 in my view 5 old for practice and 2 new fr pattern

 

[Haris Bin Zahid]

that's addmaths. and the poor guy doesn't know that you didn't had addmaths

Yeah

 

[Spidey21]

oh please do u really need addmath for that

5 -7 in my view 5 old for practice and 2 new fr pattern

add maths makes math look like a nursery thing

 

[Haris Bin Zahid]

no i'm sorry for u... add math ka paper khatam nahin hooa???

But I just started....hehe

 

[A star]

add maths makes math look like a nursery thing

really? i have seen many people with A in addmath and a B in maths. though it makes it easy but not a peace of cake.

 

[bogus]

But I just started....hehe

oh! good luck!

 

[Spidey21]

really? i have seen many people with A in addmath and a B in maths. though it makes it easy but not a peace of cake.

i have also seen that!!

 

[syed1995]

really? i have seen many people with A in addmath and a B in maths. though it makes it easy but not a peace of cake.

hahaha .. Maths is tricky, while addmaths is purely straight forward.. if you have done enough past papers getting an A* is easy as hell in addmaths .. but in maths they tend to give tricky questions so getting the grip on the concepts is the real deal in maths rather than the past papers .. take mensuration for example .. half filled cylinder with a hemisphere at the end .. find its surface area .. now we don't have the formula in our course but we have to use the concept we have to derive our own equations and find the surface area ..