Mathematics: Post your doubts here!

[tanmaydube]

please help me with these questions on this thread.
http://www.xtremepapers.com/forums/viewtopic.php?f=26&t=12175

 

[dancrev992]

Hello again guys! Do you guys have any tips to get the right form to solve equation numerically by iterative method. Any help will be great.

Thanks in advance...................

 

[yuliana95]

please help me with these questions on this thread.
http://www.xtremepapers.com/forums/viewtopic.php?f=26&t=12175

It might be a little messy..hehe.. but I hope you can understand..

 

[yuliana95]

please help me with these questions on this thread.
http://www.xtremepapers.com/forums/viewtopic.php?f=26&t=12175

no 3 a&b..

 

[yuliana95]

please help me with these questions on this thread.
http://www.xtremepapers.com/forums/viewtopic.php?f=26&t=12175

no 3c(It's really a mess)

 

[tanmaydube]

q) A 'supa-ball' is dropped from a height of 1 metre onto a level table. It always rises to a height equal to 0.9 of the height from which it was dropped. How far does it travel in total until it stops bouncing?(ans= 19m)

THANK YOU FOR HELPING!!!!

 

[dancrev992]

Hello again guys! Do you guys have any tips to get the right form to solve equation numerically by iteration method. Any help will be great.

Thanks in advance...................

Anyone, please......

 

[yuliana95]

Hello again guys! Do you guys have any tips to get the right form to solve equation numerically by iteration method. Any help will be great.

Thanks in advance...................

Anyone, please......

What do you mean by iteration mode?? unclear to me.. hehe..

 

[yuliana95]

q) A 'supa-ball' is dropped from a height of 1 metre onto a level table. It always rises to a height equal to 0.9 of the height from which it was dropped. How far does it travel in total until it stops bouncing?(ans= 19m)

THANK YOU FOR HELPING!!!!

Ans:
When the ball is dropped, it will have a sequence of : 1,0.9,0.9,0.81,0.81,...
a=0.9 r=0.9
S=a/1-r
=0.9/(1-0.9)
=9
Total distance=(9*2)+1
= 18

Note: Since the ball can bounce back, so it is multiplied by 2 & the initial height of 1m is added..

Hope it helps..

 

[dancrev992]

Hello again guys! Do you guys have any tips to get the right form to solve equation numerically by iteration method. Any help will be great.

Thanks in advance...................

Anyone, please......

What do you mean by iteration mode?? unclear to me.. hehe..

haha...maybe you don't take p3, that's why its unclear....
Anyway, let say that
x3+2x2-3=0 start with value x=0.2. find the value correct to 2 decimal places

so, what is the best way to rearrange the equation so that we get a converging value?

Thanks in advance...........

 

[yuliana95]

hahaha.. well, I'm sorry i can't help.. cz I'm still learning P2 now.. hehe..

 

[tanmaydube]

Trignomentry please Help

Find the sum of cos(π/19)+cos(3π/19)+cos(5π/19)..............+cos(17π/19).

THANK YOU FOR HELPING!!!!!

 

[Gémeaux]

cud anyone do this... a.s.a.p.
Q) Given that the expansion of (1+ax)^n begins 1+36x+576x^2, find the values of a and n.
itx a bit urgent

 

[XPFMember]

Assalamoalaikum!

I cant write better than this on paint!

 

[yuliana95]

Re: Trignomentry please Help

Find the sum of cos(π/19)+cos(3π/19)+cos(5π/19)..............+cos(17π/19).

THANK YOU FOR HELPING!!!!!

I don't understand it quite well.. Is this included in Geometric sequence? or what topic?

 

[tanmaydube]

The random variable X is the length of time in minutes that Jannon takes to mend a bicycle puncture. X has a normal distribution with mean μ and variance σ2. It is given that P(X > 30.0) = 0.1480 and P(X > 20.9) = 0.6228. Find μ and σ.(ANS: σ = 6.70 μ = 23.0)

THANK YOU FOR HELPING!!!

 

[yuliana95]

Please help me with this question its urgent

Integrate the following with respect to x :
sec^3xtanx
Hint: write as sec^2x(secxtanx)

Thank you soo much..

 

[OakMoon!]

Please help me with this question its urgent

Integrate the following with respect to x :
sec^3xtanx
Hint: write as sec^2x(secxtanx)

Thank you soo much..

Do add +c at the end.

 

[yuliana95]

Hello, It's me again.. Please help me with another question of integrating trigonometric functions.. I'm really confused I dunno how to simplify.. Please integrate this function(highlight in red): cosec^52xcot2x

Please, it's urgent.. And please give me some tips on how to integrate if there is power on the trigonometric functions, eg. sin^4x,cos^3x,etc..Thank you soo much..

 

[Silent Hunter]

hey people i want some notes,website anything to help me understand probability distributions?