Reputation
498
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3 12
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~8k people reached

  • 0 posts edited
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  • 50 votes cast
Aug
25
accepted Finding all $x$ for $\frac{2x - 13}{2x + 3} \lt \frac{15}{x}$
Aug
25
asked Finding all $x$ for $\frac{2x - 13}{2x + 3} \lt \frac{15}{x}$
Aug
24
accepted How to find $k$'s quotient of $\frac{-18}{(-2)^k}$
Aug
24
comment How to find $k$'s quotient of $\frac{-18}{(-2)^k}$
Thank you, I see now. But don't you mean $\frac{a(r^{n+1}-1)}{r-1}$? Or am I mistaken?
Aug
24
asked How to find $k$'s quotient of $\frac{-18}{(-2)^k}$
Aug
24
accepted Getting wrong result calculating sums
Aug
24
comment Getting wrong result calculating sums
I can't believe I missed such a simple mistake. Thank you!
Aug
24
asked Getting wrong result calculating sums
Aug
20
accepted Finding a value for $x$ when there should be none
Aug
20
comment Finding a value for $x$ when there should be none
@AndréNicolas Ah, yes, I see. Thank you.
Aug
20
comment Finding a value for $x$ when there should be none
@AndréNicolas You mean dividing by $0$?
Aug
20
comment Finding a value for $x$ when there should be none
This is the second time in a row I've been stuck on a problem simply because I forgot about the zero-divide no-no. :/ Thanks.
Aug
20
asked Finding a value for $x$ when there should be none
Aug
18
comment Calculating $x$ from $x^3 = 2x^2 - x$, getting wrong result
Thanks! It never struck me that $x$ could be $0$ and that I discounted that possibility so easily.
Aug
18
accepted Compute integral $\int_{-6}^6 \! \frac{(4e^{2x} + 2)^2}{e^{2x}} \, \mathrm{d} x$
Aug
18
accepted Getting square root of negative in completing the square problem
Aug
18
accepted Calculating $x$ from $x^3 = 2x^2 - x$, getting wrong result
Aug
18
comment Calculating $x$ from $x^3 = 2x^2 - x$, getting wrong result
I did actually try $x=1$ in the original equation, but were confused as I was supposed to find two separate for $x$. I didn't even stop to think it could be $0$. Thanks!
Aug
18
asked Calculating $x$ from $x^3 = 2x^2 - x$, getting wrong result
Aug
18
revised Getting square root of negative in completing the square problem
nvm