Confirming symmetry about a curve/line?
I'm a bit confused, is symmetric about Origin same as symmetric about $y=x$ line? Yes or no, how can I check for myself? I mean how can I do it on pa...
21 Apr 2026 1 READS
Archive: News
how to find slant height using radius and angle for a truncated cone
I asked this question a while ago but it got closed. I'm trying to find the slant height or just height for a truncated cone with only the radius and...
21 Apr 2026 1 READS
Diagonals of the rectangle formed by the angle bisectors of a parallelogram
Let $ABCD$ be a parallelogram. I proved that the angle bisectors of $A$, $B$, $C$, $D$ form a rectangle. How can I prove that the diagonals of this rectan...
21 Apr 2026 1 READS
How can I calculate the derivative of the derivative using the tangent line?
How can I calculate the derivative of the derivative of a function $ f(x) $ using the tangent line of a point from that function $ f(x) $ ?
21 Apr 2026 1 READS
Is $\cos(x) \times \cos(2x)$ the same as $\cos(3x)$
When you multiply $\cos(x) \times \cos(2x)$ the same as $\cos(3x)$ or do you have to treat each differently?
21 Apr 2026 1 READS
![Cauchy sequences and convergent sequences [closed]](https://edu.smbbmcl.edu.pk/uploads/cauchy-sequences-and-convergent-sequences-closed_720.jpg)
Cauchy sequences and convergent sequences [closed]
I am very confused with a little problem. What is the difference between a Cauchy sequence and a convergent sequence?
21 Apr 2026 1 READS
Derivative of 3^(x/2)
Im having trouble with this derivative: $3^{x/2}$ I know that the derivative of $c^x$ is $c^x\ln c$. Is $3^{x/2} = 3^{x/2}\ln 3$ correct?
21 Apr 2026 1 READS
Find the value of $x$ if $x^{x^4} =4$
Find the value of $x$ if $x^{x^4}=4$. Given options are $2^{1/2}$ $-2^{1/2} $ Both 1. & 2 None of the above From option verification, we get option 3....
21 Apr 2026 1 READS
![Real and Non-real Numbers; Value of Zero? [closed]](https://edu.smbbmcl.edu.pk/uploads/real-and-non-real-numbers-value-of-zero-closed_720.jpg)
Real and Non-real Numbers; Value of Zero? [closed]
There are several things that I don't understand. I know that zero is a real number, but I'm confused on the how and why aspects. What defines a...
21 Apr 2026 1 READS
Interior Points
I'm learning analysis using the Rudin's book, and sometimes the definitions make me wonder and leave me quite puzzled... So, interior points: a ...
21 Apr 2026 1 READS
