why dont the experts like kaymant help the students here nowadays?

They help only when there are some interesting questions. Nowadays, such questions are seldom posted.

agreed with swordfish!!!!!!!

and fr u goiit i think there r no more experts left at goiit thtss y u r here !!!!nd fr u i ve a link

http://www.targetiit.com/iit-jee-forum/posts/questions-for-higher-mathematics-19431.html

they still help us itss just tht interestin questions r needed to attract 'em!!!