2 Mathematical Analysis question

There is 2 Mat. Analysis question.I have time till tomorrow.I know questions are hard and who doesnt want to waste much time he can solve only one.

One of them is this.

http://www.reshebnik.ru/www/tasks/2/06/image026.gif


And second is that.

http://www.reshebnik.ru/www/tasks/2/18/image026.gif

For the second question: Just remember the formula for finding the derivative of product of functions i.e.,
(uv)' = u'v + uv'
See the attachment.
First question appears to be incomplete
Attachment 26374