Cobb-Douglas-production-model-economics-homework-help

There is some change in question 3. Output Y.

 Y=ZN (without any power). G=T=0. There is now government.

Please write the steps clearly and explain them.

I’ve also tried to solve this question, but I don’t think I did it right. The tutor is expected to correct the mistakes and provide a satisfactory answer. Thank you!