Apparently you do not comprehend the purpose of this forum.
You have now posted, by my count, 7 problems where you have simply stated the problem and said nothing else.
What do you want? For someone to do the problem for you? I hope not, that won't help you learn the material. You learn mathematics by doing mathematics, not by seeing someone else do it.
Show what you have tried and where you have difficulty. Then we can see what kind of hints and suggestions you need.