Yes, range is y and domain is x. The substitution with u^2, you just rearrange for x and diffrentiate it.
U^2=X-1 X=U^2+1
Diffrentiate the x function and since it is dx/du, you have to multiply the derivative (2U) by the function which you are trying to integrate. I had such questions in my textbook but never realised where I was going wrong! Now I know how to do it.
Oh that great I will try it later on... So,have you got any problem/unsure in C3 or just waiting for the exam?
Ive been doing Solomon papers too. They're not too bad but I keep making silly errors... I know all the theory though so its just accuracy I need to be careful about!
Got a C from Jan so defo need to make sure i get an A!
I need to go through mid ordinate and Simpsons rule as I'm a little rusty. But as long as I don't make silly mistakes, I should be fine.
How about you?
Basically i have done all the AQA C3 PP,now trying to go through all the mistake I made and hopefully can understand some things I still confusing.. And I keep making some silly mistake which is stupid... So,I will be very careful in the real paper...
i keep getting around 60/75. any ways to improve my scores in 1 day? obviously the real exam result will be alot lower because of nerves and making alot more silly mistakes. i can do all the basic stuff thats on the syllabus and questions that are similar every year, i just cant do the new stuff where they try and trick you.
i keep getting around 60/75. any ways to improve my scores in 1 day? obviously the real exam result will be alot lower because of nerves and making alot more silly mistakes. i can do all the basic stuff thats on the syllabus and questions that are similar every year, i just cant do the new stuff where they try and trick you.