Category: Algebra

Question Number 148356 by mathdanisur last updated on 27/Jul/21 Commented by Rasheed.Sindhi last updated on 27/Jul/21 $$\mathcal{T}wointeger-partsofasingle$$$$number?$$ Commented by mathdanisur last…

Question Number 17279 by tawa tawa last updated on 03/Jul/17 $$\mathrm{Is}{\cosh }^2\left(3\mathrm{x}\right)=\frac{1}{2}[1+\cos \left(6\mathrm{x}\right)]??????$$ Commented by mrW1 last updated on 03/Jul/17 $$\mathrm{cosh}^{\mathrm{2}} \:\mathrm{3x}=\left(\frac{\mathrm{e}^{\mathrm{3x}} +\mathrm{e}^{−\mathrm{3x}} }{\mathrm{2}}\right)^{\mathrm{2}}…

Question Number 148339 by mathdanisur last updated on 27/Jul/21 $$arccos\left(cos9\right)=?$$ Answered by Olaf_Thorendsen last updated on 27/Jul/21 $$x=\arccos \left(\cos 9\right))$$$$x=\arccos \left(\cos (9-2\pi )\right)),9-2\pi \in [0,\pi ]$$$${x}\:=\:\mathrm{9}−\mathrm{2}\pi \…

Question Number 148333 by mathdanisur last updated on 27/Jul/21 $${(\sqrt[3]{x}+\frac{1}{\sqrt{x}})}^{15}$$$$Findthelimitthatdoesnotinclued$$$$thevariable\mathit{x}intheopeningofthe$$$$binomial.$$ Answered by qaz last updated on 27/Jul/21…

Question Number 148314 by Tawa11 last updated on 27/Jul/21 $$\mathrm{solve}:{\mathrm{x}}^{\mathrm{x}}=\frac{1}{4}$$$$\mathrm{How}\mathrm{can}\mathrm{we}\mathrm{get}\mathrm{the}\mathrm{complex}\mathrm{solution}$$ Commented by Tawa11 last updated on 27/Jul/21 $$\mathrm{what}\:\mathrm{is}\:\:\:\:\:\:\mathrm{W}_{\mathrm{n}} \left(−\:\mathrm{ln}\:\mathrm{4}\right) \…