Mathematics: Post your doubts here!

[XPFMember]

Since this thread is for Maths Doubts, all the P1 discussion posts have been moved here = viewtopic.php?f=26&t=11501

 

[shahlakh]

oh thanks XPFmember
But why did u shift??? :unknown:

 

[XPFMember]

oh thanks XPFmember
But why did u shift??? :unknown:

Today was Maths exam...those posts were moved

 

[shahlakh]

oh thanks XPFmember
But why did u shift??? :unknown:

Today was Maths exam...those posts were moved

ahaan okay.....I get it.......thanks a lot pal :good:

 

[IgoforA]

Need help for q. no 5 mechanics part 2? the coefficient of friction? tq o/n 02

 

[rz123]

hmm You gotta resolve it down the plane and up the plane. You will get two equations 150sin 35 degree = X + F
2nd eq when the particle is moving up is 150sin 35 degree = 5X - F solve it simultaneously to get rid of x or f. add them u will get 300sin 35 = 6X , x = 28.7 N
now u have to calculate miyaaoun [ u = F/R ]calculate F by putting X value calculated earlier in any of those two equations then divide by R to get mu which is 57.36 / 123 = .47

 

[TheDealer]

Solve the following equation by completing the square:
3b^2 - 12b + 12 = 3

 

[jihan911]

S1 9709_w09_qp_62 question 1...help plzzzz!!!

 

[bloooooo]

how do i use dot product to find distance from a point to a line........?????????????

 

[1357913579]

this is the question

 

[shahlakh]

okay now that question above is out of my mind :shock:
Now good gracious!!! How can we solve this equation:
(2-y)^5
This mean u have to multiply it by five times!!! :shock: :O:

 

[1357913579]

man forgot we use binomial theorum

 

[destined007]

this is the question

 

[shahlakh]

woah woah..........easy easy dude...............so thats a big solution :good: ..............i think i am not studying this right now..............cz i have just started a levels.

 

[destined007]

anyone else remember any other question from P1?

 

[shahlakh]

u mean paper 1???? of statistics???

 

[destined007]

u mean paper 1???? of statistics???

I mean pure mathematics 1.

 

[shahlakh]

ahaan okay!!

 

[1357913579]

what if the question had positive instead of negative. means (2+(x-x^2))^5

 

[destined007]

what if the question had positive instead of negative. means (2+(x-x^2))^5

People are saying that it was 2-(2x-x^2) not 2-(x-x^2).