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Jun
17
answered Given $x^2 + 4x + 6$ as factor of $x^4 + ax^2 + b$, then $a + b$ is
Jun
16
answered High School Trigonometry ( Law of cosine and sine)
Jun
16
answered Going from $f = u(x,y) +iv(x,y)$ to $f(z) = f(x+iy)$
Jun
2
asked How to find minimum distance path between 2 points on a surface
May
29
asked Tangent points on circle that placed on Earth surface
Apr
24
answered Find area of rhombus
Apr
21
answered Why General Leibniz rule and Newton's Binomial are so similar?
Apr
20
answered Compute $\int _{\frac{4}{5}}^2\:f^{-1}\left(x\right)dx$
Apr
20
answered Binomial Theorem of Differentiation?
Mar
30
answered Convert a 2D point to 3D on a plane
Mar
10
answered Differentiate $\sqrt{1+f(x)^2}/(1+f(x))$
Dec
5
answered Complex roots forming a equilateral triangle
Dec
2
answered Minimum value of an integral with least square?
Nov
21
answered Proof of Faà di Bruno's formula using a convolution identity for Bell polynomials?
Nov
14
answered Fourier Series Transformation
Nov
13
answered Find the exact closed from expression of $1^2 + 3^2 + 5^2 + · · · + (2n + 1)^ 2$
Nov
13
answered Parameterizing an ellipse
Nov
10
asked Analysis of the function $\prod_{n=-\infty}^{ \infty }(1-e^{-a{(x+n)^2} })$
Nov
4
asked To find the general formula of $\overbrace{g(g(g(…g(x))}^\text{n}=g_n(x)=\frac{A_{n}.x+B_{n}}{C_{n}.x+D_{n}}$
Oct
13
answered How to find sum of coefficients of $\frac{d^n}{dx^n} \left( Z(x)^m \right)$