Chegg

Chegg is a wonderful site for college students to not only rent/buy textbooks, e-books, and more, but also find homework help in books.  One of the best uses of this is the ability for students to get Math questions and answers.  Students can just type in what they're looking for in Math or search by category such as: Algebra, Calculous, Trigonometry, etc.

I recommend checking out Chegg for help in Math.

*Chegg is an advertiser of Technology Tidbits.