1. The problem statement, all variables and given/known data it ask me to integral from 0 to 2pi for 1/[5+4sin(deta)] 2. Relevant equations i knoe i nid to find out the pole bu convert sin(deta) into exponential fomat 3. The attempt at a solution after i solve it until 2z^2+5iz-2 i stucked,can i juz use [-b+-squarot[b^2-4ac]]/2a formula to solve this by juz let my b=5i? and i get the answer is in negative value,if i do that.i think i might wrong ,any one can help me?