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Jun
26
accepted Multi variable integral : $\int_0^1 \int_\sqrt{y}^1 \sqrt{x^3+1} \, dx \, dy$
Jun
26
accepted Find volume of region bound by $y=x, y=x^2$ around x-axis
Jun
15
asked Find volume of region bound by $y=x, y=x^2$ around x-axis
Jun
15
accepted $s(x)$ is a arc length function, find $s'(x)$
Jun
15
accepted $f(1)=-3$ and $ f'(x)\geq7$ how small is $f(5)$?
Jun
14
reviewed Approve suggested edit on $s(x)$ is a arc length function, find $s'(x)$
Jun
14
revised $s(x)$ is a arc length function, find $s'(x)$
added 4 characters in body
Jun
14
asked $s(x)$ is a arc length function, find $s'(x)$
Jun
13
comment $f(1)=-3$ and $ f'(x)\geq7$ how small is $f(5)$?
And. this problem is call "how small" make me think about min/max rather than think $f(5)$ is a fixed number :D
Jun
13
comment $f(1)=-3$ and $ f'(x)\geq7$ how small is $f(5)$?
ah. put your solution together with Steven Stadnicki comment to prove f(x) is a linear equation, can solve my question :D
Jun
13
comment $f(1)=-3$ and $ f'(x)\geq7$ how small is $f(5)$?
@Serkan is $f(x)$ linear, right ? But can we have this conclusion ? (I think this obvious, but maybe there some other function, that after you derive, it will be constant too)
Jun
13
asked $f(1)=-3$ and $ f'(x)\geq7$ how small is $f(5)$?
Jun
13
comment Multi variable integral : $\int_0^1 \int_\sqrt{y}^1 \sqrt{x^3+1} \, dx \, dy$
@Marvis region over which you are integrating is below the parabola $y=x^2$ from x=0 to 1 Could you explain more, please.
Jun
12
accepted Lagrange's method to find min/max question
Jun
12
accepted Formula to estimate sum to nearly correct : $\sum_{n=1}^\infty\frac{(-1)^n}{n^3}$
Jun
12
asked Multi variable integral : $\int_0^1 \int_\sqrt{y}^1 \sqrt{x^3+1} \, dx \, dy$
Jun
10
asked Formula to estimate sum to nearly correct : $\sum_{n=1}^\infty\frac{(-1)^n}{n^3}$
Jun
8
awarded  Commentator
Jun
8
comment Lagrange's method to find min/max question
Sorry. Can I ask you, when I read on Wiki, constraint is an equation. and when I ask my teacher, my teacher say when constraint is inequality, we use another method.
Jun
8
comment Lagrange's method to find min/max question
can you give me an example, please. My teacher says the thing opposite :( that we can sure that no max for that function (in above example)