3. (a) Sometimes the answers a computer gives are not very useful. Use technology to evaluate the following integrals. (10 points) (i) sin x dx (ii) Jezz dx (b) Look up the definitions of the functions in the computer's answers to see if they help. A good resource is mathworld. wolfram.com. (10 points) (c) In spite of these issues, the computer can calculate some amazing numbers. Use technology to find the exact values of the following definite integrals. (10 points) co sin x .2 (i) dx (ii) e dx -OO OO