4y times y?
I have the task in my math homework and don't check what the result is
Associative law and multiplication / division?
Hey, I have a question about the rules of multiplication and division. The associative law states that the grouping of several elements with the operators + and * does not matter and I can execute, for example, 7 + 7 + 7 or 7 * 7 * 7 in any order, regardless of possible parentheses…
Distributive law and multiplication / division?
Hello, a quick question about the distributive law. One of my flashcards says the following: However, this example refers to a single operator within the parentheses. What happens if we have a term inside the parentheses? Example: (9 + 9 * 9) May I continue to apply the distributive law to the first factor, i.e….
Don't understand transformation (physics problem, but it's about basic math)?
Hey, I somehow don't understand the transformation in the solution. How do you get 1+delta m/m=1+delta n/n? I'm too stupid to use simple fraction arithmetic, so if someone could explain this to me as simply as possible, I'd be super grateful. And why can 1/2 be ignored for n >> 1? Here's the problem, for…