The simplification is just simple algebra. You shouldn't have any trouble since you're at this level of mathematics. As for 'seeing' the sub, it's a matter of doing them, I supoose.
The simplification is just simple algebra. You shouldn't have any trouble since you're at this level of mathematics. As for 'seeing' the sub, it's a matter of doing them, I supoose.
Thanks, i got it...i just fail to see at first that ! LOL