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13h
revised If $a=b$ then $a+c=b+c$?
added 35 characters in body
13h
comment If $a=b$ then $a+c=b+c$?
they are real numbers
13h
revised Summation of $\binom{N}{K}$
added 17 characters in body
13h
answered Summation of $\binom{N}{K}$
14h
comment If $a=b$ then $a+c=b+c$?
so two things are equal if the have the same value?
14h
comment If $a=b$ then $a+c=b+c$?
Why can we replace $b$ with $a$ without altering the result?
14h
revised If $a=b$ then $a+c=b+c$?
edited body
14h
revised If $a=b$ then $a+c=b+c$?
edited body
14h
revised If $a=b$ then $a+c=b+c$?
edited body
14h
asked If $a=b$ then $a+c=b+c$?
15h
comment What are the differences in mental skills required to master abstract algebra and analysis??
This is just my personal experience and opinion, I don't state it as a fact. In my personal experience when I am familiarized with a mathematical topic I achieve the same level of proficiency at it (not that the level is high, just equal).
1d
revised Prove that there is an integer a such that a is a primitive root modulo p^2 and a is relatively prime to n. [Hint: Use the Chinese Remainder Theorem.]
edited body
1d
comment Find all solutions of equation $x^{23}=5$ in $\Bbb Z_{23}$
5 is indeed the only solution.
1d
comment Prove that there is an integer a such that a is a primitive root modulo p^2 and a is relatively prime to n. [Hint: Use the Chinese Remainder Theorem.]
Sorry, it was a typo, I fixed it.
1d
revised Prove that there is an integer a such that a is a primitive root modulo p^2 and a is relatively prime to n. [Hint: Use the Chinese Remainder Theorem.]
edited body
1d
comment Find all solutions of equation $x^{23}=5$ in $\Bbb Z_{23}$
why is this tagged group theory when you are actually working in a field?
1d
answered Prove that there is an integer a such that a is a primitive root modulo p^2 and a is relatively prime to n. [Hint: Use the Chinese Remainder Theorem.]
1d
answered This question is from my discrete math. So far i have no idea how to solve it. Can anyone help me with this?
1d
revised Every open map $ f : \mathbb R \rightarrow \mathbb R$ implies
added 13 characters in body
1d
answered Every open map $ f : \mathbb R \rightarrow \mathbb R$ implies