how big a change is yr 11 maths to yr 10 maths (4 Viewers)

[AAEldar]

ahh yeh. i was completely unaware of the change of base formula. so u use that wen integrating logarithm functions of a base other than e?

Correct. The logarithm to the base e is the only logarithm who's derivative is and whose integral is . For all other bases you must change base to e.

 

[bleakarcher]

btw drongoski, i dont know all the topics. i only know volumez, integration, some of mechanics (resisted motion), some of polynomialz

 

[bleakarcher]

next question?

 

[Drongoski]

btw drongoski, i dont know all the topics. i only know volumez, integration, some of mechanics (resisted motion), some of polynomialz

That's already so far ahead for a yr -10ner.

 

[bleakarcher]

thanks. does anyone have another question. thank you btw aaeldar for adding that upon my knowledge.

 

[bleakarcher]

is this site like dead?

 

[AAEldar]

thanks. does anyone have another question. thank you btw aaeldar for adding that upon my knowledge.

I thought it was tricky anyway.

 

[bleakarcher]

Simple, use a trigonometric substitution (ie let x=sin^2(theta))

sin^(-1)[x^(1/2)]-[x(1-x)]^(1/2)+C

 

[AAEldar]

Simple, use a trigonometric substitution (ie let x=sin^(theta))

sin^(-1)[x^(1/2)]-[x(1-x)]^(1/2)+C

Sounds like it didn't trouble you at all then.

 

[bleakarcher]

naa lol

 

[bleakarcher]

one last question make it challenging. btw how is engineering studiez coz i chose that lol? will having a good background in maths benefit me, coz i hear its greatly maths involved

 

[AAEldar]

one last question make it challenging. btw how is engineering studiez coz i chose that lol? will having a good background in maths benefit me, coz i hear its greatly maths involved

It's the most boring subject ever. I hate it with a passion, and like you I chose it because I thought it would be pretty maths based - I was wrong. There is a bit of maths in it but it's by no means hard, just annoying.



Not that hard but it's just the one that was in front of me.

 

[bleakarcher]

sec^2(x)+C

 

[AAEldar]

sec^2(x)+C

I guess you let . I let .

 

[bleakarcher]

naa
i used the substitution u=cos(x)

 

[AAEldar]

naa
i used the substitution u=cos(x)

Hahaha I didn't even see that.

 

[bleakarcher]

yeh its late night that might be a reason

 

[Shadowdude]

Here's two that could be interesting:

1.

2.

 

[bleakarcher]

for the first one i used the substitution and ended up wif an even more complex integrand, where i had to use the binomial theorem, the first way seemz really tedious

 

[powlmao]

Here's two that could be interesting:

1.

2.

WHichwebsite do u use, i cannot find a good one.