Selesaikan {l}{x^2+2x-3/7x^2+23x+6}{(x+3)(x-1)}{(7x+2)(x+3)}

\left. \begin{array} { l } { \frac { x ^ { 2 } + 2 x - 3 } { 7 x ^ { 2 } + 23 x + 6 } } \\ { ( x + 3 ) ( x - 1 ) } \\ { ( 7 x + 2 ) ( x + 3 ) } \end{array} \right.

Nilaikan

\frac{x-1}{7x+2},\ \left(x-1\right)\left(x+3\right),\ \left(x+3\right)\left(7x+2\right)

Graf

Kuiz

5 masalah yang serupa dengan:

\left. \begin{array} { l } { \frac { x ^ { 2 } + 2 x - 3 } { 7 x ^ { 2 } + 23 x + 6 } } \\ { ( x + 3 ) ( x - 1 ) } \\ { ( 7 x + 2 ) ( x + 3 ) } \end{array} \right.

Masalah Sama dari Carian Web

Find all (x,y) for which f(x,y)=\begin{cases} \dfrac{2x^2y}{x^2+y^2}& (x,y)\neq(0,0) \\ 0 & (x,y)=(0,0) \end{cases} is contionus

https://math.stackexchange.com/questions/2468205/find-all-x-y-for-which-fx-y-begincases-dfrac2x2yx2y2-x-y-n

Hint: Use polar coordinate x=r\cos\theta, \, \, y=r\sin\theta. Then we have 0 \leq \left\Vert\frac{2x^2y}{x^2+y^2} \right\Vert= \frac{2r^3\cos^2\theta |\sin\theta|}{r^2} = 2r\cos^2\theta |\sin\theta| \leq 2r ...

Uniform convergence of a function composition

https://math.stackexchange.com/q/1797937

g is decreasing and 0\le f_n(x)\le1. This implies that g\circ f_n(x)\ge g(1)=1-e^{-1}=0.632121\dots and that the series \sum g\circ f_n does not converge. Also, it is easy to see that g\circ f_n(x) ...

Show an identity from Friezes

https://math.stackexchange.com/questions/2467605/show-an-identity-from-friezes

A partial answer (just about the first part) . If we have a sequence \{u_n\}_{n\geq 0} such that u_{n+2}=K u_{n+1}-u_n, its characteristic polynomial is p(x)=x^2-Kx+1, with roots \zeta_{\pm}=\frac{K\pm\sqrt{K^2-4}}{2} ...

Limit of \sum_{k=0}^{n}\frac{n}{n^2+k^2} with Riemann sum

https://math.stackexchange.com/questions/2381404/limit-of-sum-k-0n-fracnn2k2-with-riemann-sum

If you write the sum as \sum_{k=0}^n\frac{1}{n}\frac{1}{1+(\tfrac{k}{n})^2}=\left(\sum_{k=0}^{n-1}\frac{1}{n}\frac{1}{1+(\tfrac{k}{n})^2}\right)+\frac{1}{2n} then by additivity of limits, you ...

R-module isomorphism \frac{R}{x^n R} \to \frac{x^m R}{x^{m+n} R}

https://math.stackexchange.com/questions/217555/r-module-isomorphism-fracrxn-r-to-fracxm-rxmn-r

Theorem Let R be a commutative ring x \in R, we have the isomorphism of R-modules \frac{R}{x^n R} \simeq \frac{x^m R}{x^{m+n} R}. Proof First note that R is an R-module and x^n R is ...

For what values of a are the curves tangental to each other?

https://math.stackexchange.com/questions/2263497/for-what-values-of-a-are-the-curves-tangental-to-each-other

The curves are mirrored on the axis y=x. So we must have a tangent a some point with x=y and y' = \pm1. So we have a) for y' = 1: \alpha ( 2x+1) = 1 and x = ax^2+ax+\frac{1}{24} ...

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Persamaan kuadratik

{ x } ^ { 2 } - 4 x - 5 = 0

Trigonometri

4 \sin \theta \cos \theta = 2 \sin \theta

\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]

Persamaan serentak

\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.

Pembezaan

\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }

Pengamiran

\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x

Had

\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}

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