+1832 Is my answer correct?
I doubt in my steps because of the last step, the rihgt hand of the equation needs alot of computations.
You should attempt to type your questions instead of givings us copies of hand-written scribbles that we cannot copy and paste. And we have to decipher your hand writing and re-type it again!. Type it and don't be lazy. How many people on this site do what you do? If you don't get any responses to your questions, that is the reason why.
