User blacknapkins7 - Mathematics Stack Exchange

blacknapkins7

Member for 6 months
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6 Answers

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1 vote

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Is this function surjective، Injective or nether surjective nor surjective?

discrete-mathematics

answered Mar 29 at 13:51

1 vote

Accepted

Integration of piecewise function

calculus integration piecewise-continuity

answered Aug 14 at 12:28

0 votes

Graph theory Problem from MIT

graph-theory

answered 2 days ago

0 votes

Evaluating $\lim _{x\to \infty} \frac{\ln(2x+3)}{\sqrt[3]{x}}$

limits logarithms

answered Aug 6 at 1:39

0 votes

Spivak, Ch. 19, Problem 5(iv): Where step is incorrect in this attempt to solve the integral $\int\frac{1}{\sqrt{1+e^x}}dx$?

calculus integration solution-verification

answered Aug 7 at 21:53

-1 votes

Prove that if $A$ and $B$ are denumerable sets then $A\cup B$ is denumerable

functions elementary-set-theory

answered Aug 11 at 2:45