Mathematics: Post your doubts here!

[NIM]

Can anybody help me in this question

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w11_qp_41.pdf

Q 6 ) From b) onwards

Obtuse is more than 90 so................

u need to put the sin formula fr getting the angle ABC

 

[jaida al hinai]

what are the transformation matrices ???

 

[kboss]

what are the transformation matrices ???

there's a whole thread on it XD
if u don't find it just search for it

 

[kboss]

Can someone help me in this Q9).c.

1) u hv to make simultaneous eqns.
2)
a) 8a + 4b + 2 = 12 (8 comes from cubing 2 and, 4 frm squaring 2, and the 2 is the nth term we use, 12 comes frm 9 +3)
b) 27a + 9b + 3 = 30 (27 comes frm cubing 3, 9 frm squaring 3, thats cuz nth term is 3, 30 comes from 18 + 9 + 3)
3) reorder the eqns.
a) 8a + 4b = 10
b) 27a + 9b = 27
4) solve the simultaneous eqn.
5) answers: a= 0.5 and b = 1.5
hope it helps !!!
best of luck !!

 

[Maz]

1) u hv to make simultaneous eqns.
2)
a) 8a + 4b + 2 = 12 (8 comes from cubing 2 and, 4 frm squaring 2, and the 2 is the nth term we use, 12 comes frm 9 +3)
b) 27a + 9b + 3 = 30 (27 comes frm cubing 3, 9 frm squaring 3, thats cuz nth term is 3, 30 comes from 18 + 9 + 3)
3) reorder the eqns.
a) 8a + 4b = 10
b) 27a + 9b = 27
4) solve the simultaneous eqn.
5) answers: a= 0.5 and b = 1.5
hope it helps !!!
best of luck !!

I had already gotten it.Hence, i deleted it. Thanks anyway.

 

[NIM]

can someone teach me abut probability!!!
so blind in Pro

 

[kboss]

I had already gotten it.Hence, i deleted it. Thanks anyway.

ok then
best of luck though

 

[jaida al hinai]

there's a whole thread on it XD
if u don't find it just search for it

 

[IGCSE STUDENT]

summer 2010, paper 41, question 7c (i). help anyone?

 

[Lost_Life]

Guyz .. please help ! i dont understand how to find the nth term of a sequence with different differences ..?
For example ..
1, 2, 4, 8, 16 …… please help !

well, the nth term can be found using the formula An+_b
Where A is the difference in the numbers
example:
5,7,9,11..etc..
to find the A, you subtract the numbers to get a COMMON difference
that difference is A; in this case 2 (7-5),(9-7),..
Next, B, is how much to get to the first number of the sequence
that means how much 2 has to get to 5, which is 3
so the nth term(formula) is 2n+3
hope that helped

 

[Maz]

summer 2010, paper 41, question 7c (i). help anyone?

 

[Jisu]

0580/42/M/J/10
question 3) a) iv)

 

[Just Smie :)]

0580/42/M/J/10
question 3) a) iv)

Shaded Part Would Be 4/6. section numbered 1 : 3/6. total= 7/6
Then a shaded section numbered 1 : 2/6
7/6 - 2/6= 5/6 which is the answer

 

[Jisu]

Shaded Part Would Be 4/6. section numbered 1 : 3/6. total= 7/6
Then a shaded section numbered 1 : 2/6
7/6 - 2/6= 5/6 which is the answer

y do we hav to subtract ??

 

[Jisu]

same question part d also
thanx in advance

 

[Just Smie :)]

y do we hav to subtract ??[/quote

same question part d also
thanx in advance

y do we hav to subtract ??

Subtract Because Only A Shaded part Numbered One Is Required But The Other Shaded Parts Are Unwanted

 

[Lost_Life]

Guys how do we find the answer to mj 2011 paper4 variant 2 letters b andc

 

[Just Smie :)]

Guys how do we find the answer to mj 2011 paper4 variant 2 letters b andc

Number Of Question Is..., ?

 

[Jisu]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w10_qp_43.pdf
question 10
Just smile can u pls answer this question??

 

[Lost_Life]

Number Of Question Is..., ?

1.... OMG SOO SCARED i STILL DONT GET COMPUND INTEREST AND SIMPLE INTEREST