Question Number 151436 by mathdanisur last updated on 21/Aug/21 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 20366 by ajfour last updated on 26/Aug/17 $$\mathrm{tan}\:^{\mathrm{2}} {x}+\mathrm{2tan}\:{x}\:\left(\mathrm{sin}\:{y}+\mathrm{cos}\:{y}\right)+\mathrm{2}=\mathrm{0} \\ $$$${Find}\:{x},{y}\:. \\ $$ Answered by mrW1 last updated on 26/Aug/17 $$\mathrm{D}=\mathrm{4}\left(\mathrm{sin}\:\mathrm{y}+\mathrm{cos}\:\mathrm{y}\right)^{\mathrm{2}} −\mathrm{4}×\mathrm{2}\geqslant\mathrm{0} \\…
Question Number 20364 by mondodotto@gmail.com last updated on 26/Aug/17 Answered by Tinkutara last updated on 26/Aug/17 $$\mathrm{59}\:=\:\mathrm{77}\:−\:\left(\mathrm{6}\:+\:\mathrm{3}{x}\right)\:+\:{x} \\ $$$$\mathrm{2}{x}\:=\:\mathrm{12} \\ $$$${x}\:=\:\mathrm{6} \\ $$ Commented by…
Question Number 151435 by mathdanisur last updated on 21/Aug/21 Commented by peter frank last updated on 21/Aug/21 $$\mathrm{new}\:\:\mathrm{ID}\:\mathrm{but}\:\mathrm{same}\:\mathrm{guy}.\mathrm{mr}\:\mathrm{w}\:\:\mathrm{do}\:\mathrm{you}\:\mathrm{remember}? \\ $$ Commented by mr W last…
Question Number 85896 by ar247 last updated on 25/Mar/20 Commented by abdomathmax last updated on 25/Mar/20 $${I}=\int\:\:\frac{\mathrm{5}{x}−\mathrm{5}}{\mathrm{3}{x}^{\mathrm{2}} −\mathrm{8}{x}−\mathrm{3}}{dx} \\ $$$$\mathrm{3}{x}^{\mathrm{2}} −\mathrm{8}{x}−\mathrm{3}=\mathrm{0}\:\rightarrow\Delta^{'} =\mathrm{4}^{\mathrm{2}} −\left(\mathrm{3}\right)\left(−\mathrm{3}\right)\:=\mathrm{16}+\mathrm{9}=\mathrm{25} \\ $$$${x}_{\mathrm{1}}…
Question Number 151429 by peter frank last updated on 21/Aug/21 $$\int_{\mathrm{0}} ^{\pi} \frac{\mathrm{xdx}}{\left(\mathrm{a}^{\mathrm{2}} \mathrm{cos}\:^{\mathrm{2}} \mathrm{x}+\mathrm{b}^{\mathrm{2}} \mathrm{sin}\:^{\mathrm{2}} \mathrm{x}\right)^{\mathrm{2}} } \\ $$ Answered by Olaf_Thorendsen last updated…
Question Number 151428 by peter frank last updated on 21/Aug/21 $$\int\frac{\mathrm{x}+\mathrm{2}}{\left(\mathrm{x}^{\mathrm{2}} +\mathrm{3x}+\mathrm{3}\right)\sqrt{\mathrm{x}+\mathrm{1}}}\mathrm{dx} \\ $$$$ \\ $$ Answered by MJS_new last updated on 21/Aug/21 $$\left(\mathrm{1}\right)\:\mathrm{trying}\:\mathrm{something} \\…
Question Number 151425 by peter frank last updated on 21/Aug/21 $$\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{2}}} \frac{\mathrm{dx}}{\left(\mathrm{cos}\:\mathrm{x}+\sqrt{\mathrm{3}}\:\mathrm{sin}\:\mathrm{x}\right)^{\mathrm{2}} }\mathrm{dx}=\frac{\mathrm{1}}{\:\sqrt{\mathrm{3}}} \\ $$ Answered by Olaf_Thorendsen last updated on 21/Aug/21 $$\mathrm{I}\:=\:\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{2}}}…
Question Number 85890 by frc2crc last updated on 25/Mar/20 $${Is}\:{there}\:{a}\:{sum}\:{for}\:\psi\left(\frac{{p}}{{q}}\right)\:{or}\:{an}\:{integral} \\ $$$${for}\:{any}\:{fraction}\:{p}/{q} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 85888 by M±th+et£s last updated on 25/Mar/20 $${i}−\int_{\mathrm{0}} ^{\mathrm{5}} \left({x}+\left[\mathrm{2}{x}\right]\right)^{\left[\frac{{x}}{\mathrm{3}}\right]} {dx} \\ $$$$ \\ $$$${ii}−\int_{\mathrm{0}} ^{\mathrm{3}} \left({z}−\left\{{z}\right\}\right)^{\left[{z}\right]} \:{dz} \\ $$ Commented by abdomathmax…