Mathematics: Post your doubts here!

[M.H.Q]

Hope this helps you, I have only this, and I'll recommend you to use this site --> http://www.examsolutions.net/maths-revision/syllabuses/CIE/period-1/M1/module.php

Hey Thanks

 

[asd]

stats is easy

yeah, is it not?

 

[Namehere]

I'm so happy I already gave mechanics exam last year. Stats FTW. it's so easy. :')

Lemme borrow your brain while doing the exam then, please!

 

[asd]

Lemme borrow your brain while doing the exam then, please!

Haha, sure why not! :3

 

[daredevil]

I'm so happy I already gave mechanics exam last year. Stats FTW. it's so easy. :')

stats is easy

ummm ahem ahem... asd show off AHEM!! xD

agreed A star?

serioussllyyyy stats STATTSS is easy??!!
wooww....!!

 

[asd]

ummm ahem ahem... asd show off AHEM!! xD

agreed A star?

serioussllyyyy stats STATTSS is easy??!!
wooww....!!

LOOL. PLEEASSEE DUDE. I swear I think its easy!
I find mechanics harder seriously.

 

[Thought blocker]

LOOL. PLEEASSEE DUDE. I swear I think its easy!
I find mechanics harder seriously.

Same prob with me yaar!

 

[Lyfroker]

LOOL. PLEEASSEE DUDE. I swear I think its easy!
I find mechanics harder seriously.

Mechanics is a piece of cake not sure abt stats...

 

[Thought blocker]

Mechanics is a piece of cake not sure abt stats...

?

 

[daredevil]

LOOL. PLEEASSEE DUDE. I swear I think its easy!
I find mechanics harder seriously.

Same prob with me yaar!

lol okay then... i guess it's to each his own then..

 

[robinhoodmustafa]

Mechanics is a piece of cake not sure abt stats...

Stats require so much memorizing all the formula and condition on which such formula or method will apply.
and guess what! It has theory Parts also

 

[Hamza Khan]

Can someone please differentiate the following equation ?
Y = (2x-1)
--------
(1-x)

 

[daredevil]

someone plz solve this question for me and explain.. a special request to u mechanics masters asd Thought blocker

 

[Thought blocker]

View attachment 39896

someone plz solve this question for me and explain.. a special request to u mechanics masters asd Thought blocker

p1 ? ?

 

[Thought blocker]

Can someone please differentiate the following equation ?
Y = (2x-1)
--------
(1-x)

d/dx(2x−11−x)

=(1−x)⋅d/dx(2x−1)−d/dx(1−x)⋅(2x−1)(1−x)2

=2⋅(1−x)−−1⋅(2x−1)(1−x)2

=2x+2⋅(1−x)−1(1−x)2

simplify:

=2x−1(1−x)2+21−x Is this the answer ?

 

[Hamza Khan]

d/dx(2x−11−x)

=(1−x)⋅d/dx(2x−1)−d/dx(1−x)⋅(2x−1)(1−x)2

=2⋅(1−x)−−1⋅(2x−1)(1−x)2

=2x+2⋅(1−x)−1(1−x)2

simplify:

=2x−1(1−x)2+21−x Is this the answer ?

You mis-interpreted the equation. The originalequation was Y = (2x-1) divided by (1-x)

 

[ahmed abdulla]

If anyone has any notes on mechanics plz share them.... i'll be extremely grateful!! :')

I found this site this year , i was angry i couldn't find it last year for my M1
http://www.mrbartonmaths.com/resources/a level revision/M1.pdf
And regarding your question , i remember it came last year in my exam and i left it !!
i think 95% were not able to do it ! but that doesnt mean you give up go thorough notes and check if that helps

 

[A star]

ummm ahem ahem... asd show off AHEM!! xD

agreed A star?

serioussllyyyy stats STATTSS is easy??!!
wooww....!!

LOOL. PLEEASSEE DUDE. I swear I think its easy!
I find mechanics harder seriously.

haha xD well then try going for commerce those with a commerce back ground or those who would generally do well in commerce do well in S1 and if you found S1 easy you shold have taken S1 S2 the difference is really nothing except 2 questions and increased difficulty

 

[Faithix MFSH]

i hope u get wat's writtenn here

i assumed the normal vector of the 2nd plane to be (a, b, c)
as we know that the plane is perpendicular to the other lane then their normal vectors will also b perpendicular.
according to cross product n1.n2 = 0 which gives us
a + 2b + 3c = 0

the line and the plane are parellel which means the normal vector of the plane is perpendicular to the direction vector of the line
so m.n2 = 0 gives us:
a - 2b + c = 0


i used substitution method here .. u can use elimination method too ... and solve the equations simultaneously
(4b, b, -2b) is the normal vector which when simplified gives
(4, 1, -2b)

then multiply the normal vector with the position vector of the point on the plane to get 'd'

It sounds very simple that I see it explained now.
Thanks alot!

 

[daredevil]

p1 ? ?

nahi... it's M1