Question Number 74129 by malwaan last updated on 19/Nov/19 $$\mathrm{2}\boldsymbol{{C}}_{\mathrm{4}} ^{\boldsymbol{{n}}} \:=\:\mathrm{35}\boldsymbol{{C}}_{\mathrm{3}} ^{\frac{\boldsymbol{{n}}}{\mathrm{2}}} \: \\ $$$$\Rightarrow\:\boldsymbol{{n}}\:=\:? \\ $$ Answered by MJS last updated on 20/Nov/19…
Question Number 139656 by mohammad17 last updated on 30/Apr/21 $${if}\:\:^{\mathrm{4}} \mathrm{2}=\mathrm{2}^{{x}} \:\:{find}\:{x} \\ $$ Commented by mr W last updated on 30/Apr/21 $${what}\:{is}\:^{\mathrm{4}} \mathrm{2}? \\…
Question Number 74123 by liki last updated on 19/Nov/19 Commented by liki last updated on 19/Nov/19 $$…{i}\:{need}\:{help}\:{roman}\:\left({iii}\right)\:{plz}.. \\ $$ Commented by liki last updated on…
Question Number 8585 by tawakalitu last updated on 17/Oct/16 Commented by ridwan balatif last updated on 17/Oct/16 $$\mathrm{we}\:\mathrm{must}\:\mathrm{count}\:\mathrm{the}\:\mathrm{value}\:\mathrm{of}\:\mathrm{x}? \\ $$ Commented by ridwan balatif last…
Question Number 74121 by Raxreedoroid last updated on 19/Nov/19 $$\mathrm{Factor}\:\mathrm{the}\:\mathrm{polynomial} \\ $$$$\left(\frac{{c}}{\mathrm{2}}\right){x}^{\mathrm{2}} +\left({b}−\frac{\mathrm{3}{c}}{\mathrm{2}}\right){x}+\left({c}−{b}+{a}\right) \\ $$ Commented by MJS last updated on 19/Nov/19 $$\left({x}+\frac{{b}}{{c}}−\frac{\mathrm{3}}{\mathrm{2}}+\frac{\sqrt{\left(\mathrm{2}{b}−{c}\right)^{\mathrm{2}} −\mathrm{8}{ac}}}{\mathrm{2}{c}}\right)\left({x}+\frac{{b}}{{c}}−\frac{\mathrm{3}}{\mathrm{2}}−\frac{\sqrt{\left(\mathrm{2}{b}−{c}\right)^{\mathrm{2}} −\mathrm{8}{ac}}}{\mathrm{2}{c}}\right)…
Question Number 8582 by thomas last updated on 16/Oct/16 $$\mathrm{9}×\mathrm{9} \\ $$ Answered by Rasheed Soomro last updated on 17/Oct/16 $$\mathrm{9}×\mathrm{9} \\ $$$$=\left(\mathrm{10}−\mathrm{1}\right)\left(\mathrm{10}−\mathrm{1}\right) \\ $$$$=\left(\mathrm{10}−\mathrm{1}\right)^{\mathrm{2}}…
Question Number 139655 by mohammad17 last updated on 30/Apr/21 Answered by qaz last updated on 30/Apr/21 $$\int_{\mathrm{0}} ^{\mathrm{1}} {x}\mathrm{tan}^{−\mathrm{1}} \left({x}\right){ln}\left({x}^{\mathrm{2}} +\mathrm{1}\right){dx} \\ $$$$=\frac{\mathrm{1}}{\mathrm{2}}\int_{\mathrm{0}} ^{\mathrm{1}} \mathrm{tan}^{−\mathrm{1}}…
Question Number 139654 by otchereabdullai@gmail.com last updated on 30/Apr/21 Commented by mr W last updated on 30/Apr/21 $${too}\:{less}\:{information}\:{to}\:{find}\:{x}! \\ $$$${you}\:{should}\:{give}\:{e}.{g}.\:{AC}\:{or}\:{DC}. \\ $$ Commented by mr…
Question Number 74117 by necxxx last updated on 19/Nov/19 $${Find}\:{the}\:{volume}\:{of}\:{the}\:{solid}\:{that}\:{lies} \\ $$$${within}\:{the}\:{sphere}\:{x}^{\mathrm{2}} +{y}^{\mathrm{2}} +{z}^{\mathrm{2}} =\mathrm{16},\:{above} \\ $$$${the}\:{x}-{y}\:{plane}\:{and}\:{below}\:{the}\:{cone} \\ $$$${z}=\sqrt{{x}^{\mathrm{2}} +{y}^{\mathrm{2}} } \\ $$ Commented by…
Question Number 139649 by mnjuly1970 last updated on 30/Apr/21 Commented by mr W last updated on 30/Apr/21 $$\frac{{red}}{{green}}=\frac{\mathrm{6}}{\mathrm{5}} \\ $$ Answered by mr W last…