integrate (1 Viewer)

[tacogym27101990]

2* sqrt( 27-9sin²x) dx

thanks

 

[QuLiT]

sorry wrong.

 

[tacogym27101990]

= 2sqrt3 times integral of 3cosx

how?

 

[tacogym27101990]

anyone???

 

[Affinity]

2* sqrt( 27-9sin²x) dx

thanks

It's not an elemetary integral. You can reduce it to the partial perimeter of an ellipse and look up a table.

 

[tacogym27101990]

It's not an elemetary integral. You can reduce it to the partial perimeter of an ellipse and look up a table.

o yeah
i dont know what that is

 

[Pwnage101]

yeh ull neva get that in nthe HSC

 

[samwell]

yeh ull neva get that in nthe HSC

can be our qsn 8. u never noe lol.
It seems too complex for yr 12 integration. coz all the methods we learnt dont seem to work.
Did anybody work this out??? i mean with yr 12 maths.

 

[Trebla]

You probably won't be asked to integrate it directly, but perhaps you could be asked to approximate it in its definite form, possibly by establishing two sided inequalities with that integral.