Category: Algebra

Question Number 143006 by mathdanisur last updated on 08/Jun/21 $$1.y\frac{\partial z}{\partial x}+z\frac{\partial z}{\partial y}=\frac{y}{x}$$$$2.x^2\frac{\partial z}{\partial x}-xy\frac{\partial z}{\partial y}+y^2=0$$$$3.\{\begin{array}{l}\frac{\partial z}{\partial x}=\frac{z}{x}\\ \frac{\partial z}{\partial y}=\frac{2z}{y}\end{array}$$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 77459 by jagoll last updated on 06/Jan/20 $$$$$$$$$$thegreatestvalueofnsothat$$$$onlyonevalueofksatisfies$$$$\frac{8}{15}<\frac{n}{n+k}<\frac{7}{13}is$$ Answered by MJS last updated…

Question Number 11914 by ahmet last updated on 04/Apr/17 $$Turevlenebilirbirffonksiyonuicin$$$$f(x+y)=f\left(x\right)+f\left(y\right)+2xyve{f}^{\prime }\left(0\right)=-3$$$$old.gore{f}^{\prime }\left(2\right)=?$$$$czm\because f(x+y)=f\left(x\right)+f\left(y\right)+2xy$$$$yyisabitkabuledersek$$$$f^{\prime }(x+y)=f^{\prime }\left(x\right)+2y$$$$x=0,y=2icn$$$${f}'\left(\mathrm{2}\right)={f}'\left(\mathrm{0}\right)+\mathrm{2}.\mathrm{2} \…

Question Number 11901 by ahmet last updated on 04/Apr/17 $$\frac{7{cos}^{2}x+{sin}^{2}x-3}{2{cos}^{2}x-{sin}^{2}x}=?$$$$czm\because \frac{7{cos}^{2}x+1-{cos}^{2}x-3}{2{cos}^{2}x-{sin}^{2}x}$$$$\frac{\mathrm{6}{cos}^{\mathrm{2}} {x}−\mathrm{2}}{\mathrm{2}{cos}^{\mathrm{2}} {x}−\left(\mathrm{1}−{cos}^{\mathrm{2}} {x}\right)}=\frac{\mathrm{6}{cos}^{\mathrm{2}}…

Question Number 77412 by BK last updated on 06/Jan/20 Commented by Tony Lin last updated on 06/Jan/20 $$\zeta \left(s\right)=\frac{1}{1^s}+\frac{1}{2^s}+\frac{1}{3^s}+\cdot \cdot \cdot +\frac{1}{n^s}$$$$\zeta\left(\mathrm{2}\right)=\frac{\mathrm{1}}{\mathrm{1}^{\mathrm{2}} }+\frac{\mathrm{1}}{\mathrm{2}^{\mathrm{2}}…