By the way, one thing I have to point out that is, whenever you say something you don\’t understand, also say what you have understood. That\’s the rule of thumb I always ask my students when they post questions.
If you don\’t say a little bit about your understanding, what exactly am I supposed to tell you. Am I responsible for teaching you from 1+1 = 2? Obviously, that\’s impossible.
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What do you mean by at all?
Except for problem 1 and 2, all problems after have detailed steps.
Problem 1 and 2 don’t need steps because the answer is directly obtained by definition.
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Feel free to ask if confused.
