I cannot figure out how to answer this question. Please help

I can't, either. Maybe you could write it down and show me.

I am stuck on the cosgs. I have worked with thisproblem for 8 hours.

I cannot figure out how to answer this question. Please help

Where is the question?? Can you also send in your attempted answer for review and guidance?

This site is worldwide... even if it weren't, no one could possibly know what book you're using! And maybe a slight chance someone would have it if we did know.