Question Number 166400 by naka3546 last updated on 20/Feb/22 $$\mathrm{Find}\:\:\mathrm{all}\:\:\mathrm{pairs}\:\:\mathrm{of}\:\:\mathrm{positive}\:\:\mathrm{integers}\:\left({a},{b}\right)\:\:\mathrm{such}\:\:\mathrm{that} \\ $$$$\:\:\:\:\:\:\frac{{a}^{\mathrm{2}} }{\mathrm{2}{ab}^{\mathrm{2}} \:−\:{b}^{\mathrm{3}} +\mathrm{1}}\:\:\in\:\:\mathbb{Z}^{+} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 166392 by leicianocosta last updated on 19/Feb/22 Answered by som(math1967) last updated on 19/Feb/22 $${n}=\mathrm{1} \\ $$$$\mathrm{3}^{\mathrm{4}} +\mathrm{2}^{\mathrm{7}} =\mathrm{81}+\mathrm{128}=\mathrm{209}=\mathrm{11}×\mathrm{19} \\ $$$${multiple}\:{of}\:\mathrm{11} \\ $$$$\:\mathrm{3}^{\mathrm{2}{m}+\mathrm{2}}…
Question Number 100843 by bachamohamed last updated on 28/Jun/20 $$\:\underset{{k}=\mathrm{1}} {\overset{{n}} {\sum}}\:\frac{\boldsymbol{{ln}}\left(\boldsymbol{{k}}\right)}{\boldsymbol{{k}}!}\:=\:? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 166378 by MathsFan last updated on 19/Feb/22 $$\:\mathrm{8}{x}^{\mathrm{3}} −\mathrm{6}{x}+\mathrm{1}=\mathrm{0} \\ $$$$\:{solve}\:{for}\:{x} \\ $$ Answered by mr W last updated on 19/Feb/22 $$\mathrm{3}{x}−\mathrm{4}{x}^{\mathrm{3}} =\frac{\mathrm{1}}{\mathrm{2}}…
Question Number 166379 by SANOGO last updated on 19/Feb/22 $${soit}\left\{_{{u}_{\mathrm{1}} =\mathrm{4}} ^{{u}_{{o}} =\mathrm{1}} \:\:\forall{n}\epsilon{N}\right. \\ $$$${montrer}\:{par}\:{reccurence}\:\:{que}: \\ $$$${U}_{{n}+\mathrm{2}} =\mathrm{2}{U}_{{n}+\mathrm{1}} −{U}_{{n}} \\ $$ Answered by qaz…
Question Number 166358 by leicianocosta last updated on 19/Feb/22 Answered by naka3546 last updated on 19/Feb/22 $$\frac{\mathrm{3a}^{\mathrm{2}} +\mathrm{5}}{\mathrm{a}^{\mathrm{2}} −\mathrm{1}}\:−\:\frac{\mathrm{3a}^{\mathrm{2}} +\mathrm{1}}{\mathrm{a}^{\mathrm{2}} −\mathrm{1}}\:<\:\mathrm{0} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\frac{\mathrm{4}}{\mathrm{a}^{\mathrm{2}} −\mathrm{1}}\:<\:\mathrm{0} \\…
Question Number 166350 by mkam last updated on 18/Feb/22 Commented by mkam last updated on 18/Feb/22 $${how}\:{can}\:{it}\:{solve}\:{this}\:{proplem}\:{it}\:{is}\:{very}\:{hard}\:{helps}\:{me}\:? \\ $$ Answered by mahdipoor last updated on…
Question Number 35265 by 1244 last updated on 17/May/18 $$\mathrm{4}−\mathrm{4}×\mathrm{4}+\mathrm{4}= \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 166321 by mathls last updated on 18/Feb/22 Answered by alephzero last updated on 19/Feb/22 $${x}\:−\:{table} \\ $$$${y}\:−\:{cat} \\ $$$${z}\:−\:{turte} \\ $$$$\Rightarrow\:\begin{cases}{{y}+{x}−{z}\:=\:\mathrm{170}}\\{{z}+{x}−{y}\:=\:\mathrm{130}}\end{cases} \\ $$$${y}\:=\:\mathrm{170}−{x}+{z}…
Question Number 35246 by JOHNMASANJA last updated on 17/May/18 $${if}\:{x}^{{p}} \:+\:{y}^{{q}} \:=\left({x}\:+\:{y}\right)^{{p}+{q}} \: \\ $$$${prove}\:{that}\:\frac{{dy}}{{dx}}=\frac{{y}}{{x}} \\ $$ Commented by math1967 last updated on 17/May/18 $${plz}.\:{check}\:{question}…