Category: Algebra

Question Number 114625 by bobhans last updated on 20/Sep/20 Answered by john santu last updated on 20/Sep/20 $$\iff k^4+2k^2+9=k^4+6k^2+9-4k^2$$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=\:\left({k}^{\mathrm{2}} −\mathrm{2}{k}+\mathrm{3}\right)\left({k}^{\mathrm{2}}…

Question Number 180142 by Shrinava last updated on 07/Nov/22 Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 114593 by abdullahquwatan last updated on 19/Sep/20 $$\frac{\mid x-1\mid }{\mid x\mid -1}⩽1$$ Answered by MJS_new last updated on 19/Sep/20 $$\left(1\right)\mid x\mid -1\ne 0\Rightarrow x\ne \pm 1$$$$\left(2\right)\mid x\mid -1<0\Rightarrow -1<x<1$$$$\:\:\:\:\:\:\:\mid{x}−\mathrm{1}\mid\geqslant\mid{x}\mid−\mathrm{1}\:\mathrm{true}\:\forall{x}\in\mathbb{R} \…

Question Number 180082 by a.lgnaoui last updated on 07/Nov/22 $$Sachantque{\mathrm{A}}_1{\mathrm{A}}_2=10cm:\measuredangle \mathrm{AAB}={75}^{°}$$$$1-Determinerl{}^{\prime }anglex$$$$2-Determinerladistance{\mathrm{A}}_1\mathrm{A}6$$$$3-Determinerlahauteur\left[h\right]={\mathrm{A}}_6\mathrm{B}$$ Commented by a.lgnaoui…

Question Number 180069 by Acem last updated on 06/Nov/22 $$a^2-b^2=4,ab=2,a+b=?$$ Commented by Acem last updated on 07/Nov/22 $$Haveagooddaymybrothers$$$$\:{mr}.\:{W}\:{and}\:{mr}.\:{Rasheed} \…