KIndly answer the whole question. The whole question is related. I only have 10 minutes time. Give me a detailed answer in a clear handwriting and follow the instructions. (I will upvote if the solve...

KIndly answer the whole question. The whole question is related. I only have 10 minutes time. Give me a detailed answer in a clear handwriting and follow the instructions.(I will upvote if the solve is correct and I get it soon)

Extracted text: e+e-% (a) Find all the solutions of cosh z = 2 (Hint: cosh z (b) Show that ¿t is real, even though i or 8i is not.