You can do it a different way:well when you manipulate dtheta in terms of dt that requires deriving inverse tan
You aiming for state rank right?well when you manipulate dtheta in terms of dt that requires deriving inverse tan
Don't worry it takes time.I'll give it a go but i just learnt integration na no where near as good as you to get state rank
dang it lolWait doesn't it become:
?
Oh well. I guess we are all off at some stage.dang it lol
Well still have the goal in your mind and go for it I reckonI'll give it a go but i just learnt integration na no where near as good as you to get state rank
Ah lol I got stuck during the thing, sorry I died lol. I think I just frustrated when I started, I think my dtheta was wrong so it stuffed the thing up. Are there solutions?Correct. Have a go at the one Sy posted before that I tried three times but didn't use the correct method for on the previous page.
I'm not sure if RR knows what to do (just ask for help).
I can post up the full one if you like.Ah lol I got stuck during the thing, sorry I died lol. I think I just frustrated when I started, I think my dtheta was wrong so it stuffed the thing up. Are there solutions?
CorrectAh lol I got stuck during the thing, sorry I died lol. I think I just frustrated when I started, I think my dtheta was wrong so it stuffed the thing up. Are there solutions?
edit: got ln(2)
You forgot to change your limits according to the variable you are integrating with respect to. Should be 1 to 0, not pi/2 to 0.View attachment 29859
These are my solutions...they're really messy but if there's anything that would make them better, please let me know I need to work on correcting my working out because it's a bit incomprehensible at times
aw crap, thanks carrotYou forgot to change your limits according to the variable you are integrating with respect to. Should be 1 to 0, not pi/2 to 0.
Its fine.View attachment 29859
These are my solutions...they're really messy but if there's anything that would make them better, please let me know I need to work on correcting my working out because it's a bit incomprehensible at times
Nah, I didn't show you my previous working but I got stuck because I couldn't simplify the t-formula bit well enough because I forgot sec^2 = tan^2+1 (noob lol)Its fine.
You can do it in less working out. My writing is 2-3 times bigger but I wouldn't do as many re-arranging steps. However, you do risk making a mistake with less steps.
Like to show the derivative it would take me 3 lines, and doing the rest of the question would take me 5 lines.
Change the limits first it is safer that way than substituting them in later (to me it was but it depends for you). I think that is the reason why you got stuck there.
I made that mistake once while doing Terry Lee, and then never forgot it since.Nah, I didn't show you my previous working but I got stuck because I couldn't simplify the t-formula bit well enough because I forgot sec^2 = tan^2+1 (noob lol)