i have a few integrations questions i need help with (1 Viewer)

[Riot09]

1.find the integral of x^2 over sqaure root of x^3+5

2.find the integral of 5-x^2 over 5+x^2 whole squared

3.find the integral of x(x+1)^half

4.find p if the integral of (px-1)^2 =35/3

_iv'e gone through the working out for these questions several times and still don't understand it,so can somebody please explain it to me.

(i'm good at biology,english advanced and visual arts,so if you need any help just say so).

 

[SpiralFlex]

1.

Let












2. Clarify this question. Is square on top/bottom?


3.

Let





By substitution,









4. You forgot to give us some limits.

 

[SpiralFlex]

1.

Let












2. Clarify this question. Is square on top/bottom?


3.

Let





By substitution,









4. You forgot to give us some limits.

Also these questions require 3U methods. I can't think of any 2U methods. I will try and spot some.

 

[taeyang]

Isn't this 2 unit?

Wait, nevermind, didn't read your last post.

 

[SpiralFlex]

Isn't this 2 unit?

There doesn't seem to be any 2U methods. None that I can think of.

 

[taeyang]

There doesn't seem to be any 2U methods. None that I can think of.

Yeh, you're right, definately 3u :3

 

[bleakarcher]

i think they teach basic substitution of variables in 2 unit dont they?

 

[SpiralFlex]

i think they teach basic substitution of variables in 2 unit dont they?

Nope. 3U only.

 

[nightweaver066]

i think they teach basic substitution of variables in 2 unit dont they?

No substitution at all i believe.

Just integration, integration of trigonometric functions, exponential, logarithmic and also volume and area. Also used in geometric applications of calculus.