Mathematics: Post your doubts here!

[parthrocks]

I showed u all ????? see again... now u just need to put limits

Ok bro I am trying again!!thanks i think it really works welll!!
Your TECHNIQUEX

 

[D0cEngi]

Urgent help needed on these trigonometry identities..:
Q.. sin(A-B)/sin(A+B) = (tan A -tan B)/(tan A+tan B)

 

[whitecorp]

Urgent help needed on these trigonometry identities..:
Q.. sin(A-B)/sin(A+B) = (tan A -tan B)/(tan A+tan B)

Here you go, the workings:



Hope this helps. Peace.

 

[caro24]

can anyone help me for s1 nov 10 p61 num 3ii) and 6...its urgent

 

[parthrocks]

Here you go, the workings:



Hope this helps. Peace.

http://www.xtremepapers.com/community/attachments/dount-maaths-p3-jpg.16916/ plz help me with this

 

[caro24]

plz plz

 

[Minato112]

plz plz

Can U post the question?

 

[PhyZac]

Assalamu Alikm Wa Rahmatullah Wa Barakatooh,

Please help, minato112

Q 8, PART (ii)

Question -

Answer-

 

[nightrider1993]

hey plz someone help me plzzzzzzzzzzzzzz
minato112
nightrider1993

Since the line lies on the plane. then just insert the values of r, when lamda is zero and 1. then solve simulateously

 

[Taiyaba]

please refer the year from which u took this question or the complete question if took from a book .. I ust want sumthing more to understand what is the question about

We are supposed to find the equation of the line

 

[Taiyaba]

If the gradient is undefined then the line will be parallel to the y-axis... therfore u will only need to write the equation parallel to y-axis....ie x=-2, x=5, x=2.5 , etc

Thnx

 

[nightrider1993]

Ok Amy Bloom
nightrider1993
leadingguy
minato112
plz br precise and need it urgently plz

Thats how you do it. Sory bt i dont agre with the other method. Well i've never heard of the ratio method, bt if it works then al gud. peace

 

[nightrider1993]

Assalamu Alikm Wa Rahmatullah Wa Barakatooh,

Please help, minato112

Q 8, PART (ii)

Question -
View attachment 16949
Answer-
View attachment 16950

the formula for volume is
Volume= (pi )*( Integration of y^2)
So basicly u just have to use this formula and find the answer

 

[leadingguy]

the formula for volume is
Volume= (pi )*( Integration of y^2)
So basicly u just have to use this formula and find the answer

A personal question sir!!! why is ur name nightrider??? CAN U TELL??? IF DNT MYND BRO. ??

 

[cramming]

hey sorry i forgot logs... can someone help?
what do i do after (2x-1)ln5=ln2+xln3
thanks in advance

 

[PhyZac]

the formula for volume is
Volume= (pi )*( Integration of y^2)
So basicly u just have to use this formula and find the answer

Yes I know that......but i cant figure out how to do it, like what number to substitute x after finding the integration.....the question did not give a limit of x..

 

[whitecorp]

Yes I know that......but i cant figure out how to do it, like what number to substitute x after finding the integration.....the question did not give a limit of x..

If you drew out the curve, you will notice that the x-intercepts are x=0 and x=8; since we are looking at volume of revolution about the x-axis, those x-intercept values would give you your lower/upper limits of integration respectively.

Hope this helps. Peace.

 

[PhyZac]

If you drew out the curve, you will notice that the x-intercepts are x=0 and x=8; since we are looking at volume of revolution about the x-axis, those x-intercept values would give you your lower/upper limits of integration respectively.

Hope this helps. Peace.

Thank you so much, Yes it helped me alot, i am now able to solve it....Jazak Allah khairan... !!!!!

 

[nightrider1993]

How to do the following question...

How do u separate the first part.... Just found this question online

 

[nightrider1993]

How to do the following question... View attachment 16972

How do u separate the first part.... Just found this question online

Don't worry guys i figured it out.... Just made a stupid mistake