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Apr
28
awarded  Nice Question
Apr
27
asked Singularity of $f(z)=\frac{\sin z}{z}$ at $z=0$
Apr
26
asked Help in the demonstration of the theorem 1.2 chapter V from Conway's complex analysis book
Apr
25
accepted Help in a demonstration of a theorem in Hoffman and Kunze's linear algebra book (theorem 13 section 1.6)
Apr
25
comment Help in a demonstration of a theorem in Hoffman and Kunze's linear algebra book (theorem 13 section 1.6)
Thank you for your answer!
Apr
25
asked Help in a demonstration of a theorem in Hoffman and Kunze's linear algebra book (theorem 13 section 1.6)
Apr
24
asked Question about row-reduced matrices
Apr
9
awarded  Popular Question
Apr
4
awarded  Notable Question
Apr
3
awarded  Notable Question
Mar
28
accepted How to find this volume using cyllindrical shells (vertical rectangles)
Mar
28
comment How to find this volume using cyllindrical shells (vertical rectangles)
Thank you for your answer. I have a question, the difference of shells and washers is because one is parallel to the axis of rotation and another is perpendicular to the axis of rotation?
Mar
28
asked How to find this volume using cyllindrical shells (vertical rectangles)
Mar
10
asked How to plot $f(x)=x^{2/3}$
Feb
18
comment Is this example in the Leithold's calculus book wrong?
Thank you very much!!!
Feb
18
accepted Is this example in the Leithold's calculus book wrong?
Feb
18
comment Is this example in the Leithold's calculus book wrong?
Could you please add the solution of the volume of the cylinder I draw using the circular disk method?
Feb
18
revised Is this example in the Leithold's calculus book wrong?
added 141 characters in body
Feb
18
comment Is this example in the Leithold's calculus book wrong?
@Galc127 I agree, but following your argument, the example should be $\int ((\sqrt{20-4y}+1)^2-1^2)dy$, instead of $\int (20-4y)dy$
Feb
18
asked Is this example in the Leithold's calculus book wrong?