Question Number 1024 by brahim last updated on 19/May/15 $$\mathrm{4}{x}+\mathrm{5}=\mathrm{6}−\mathrm{4}\left(\mathrm{1}−{x}\right) \\ $$ Answered by prakash jain last updated on 19/May/15 $$\mathrm{4}{x}+\mathrm{5}=\mathrm{6}−\mathrm{4}+\mathrm{4}{x} \\ $$$$\mathrm{Equation}\:\mathrm{has}\:\mathrm{no}\:\mathrm{solution}. \\ $$…
Question Number 1023 by 123456 last updated on 20/May/15 $$\phi_{{n}} :\mathbb{R}\rightarrow\mathbb{R} \\ $$$${n}\in\mathbb{N}^{\ast} \\ $$$$\phi_{{n}} ={t}^{{n}} \frac{{d}^{{n}} \phi}{{dt}^{{n}} } \\ $$$$\phi_{\mathrm{1}} \left({t}\right)=?,\phi_{\mathrm{1}} \left(\mathrm{1}\right)=+\mathrm{1} \\ $$$$\phi_{\mathrm{2}}…
Question Number 132089 by rs4089 last updated on 11/Feb/21 $$\int_{\mathrm{0}} ^{\infty} \frac{\mathrm{1}}{\left({x}^{\mathrm{4}} −{x}^{\mathrm{2}} +\mathrm{1}\right)^{\mathrm{3}} }{dx} \\ $$ Answered by Lordose last updated on 11/Feb/21 $$\Omega\:=\:\int_{\mathrm{0}}…
Question Number 1018 by prakash jain last updated on 15/May/15 $$\mathrm{Find} \\ $$$$\mathrm{tan}\:\theta+\mathrm{2tan}\:\mathrm{2}\theta+\mathrm{2}^{\mathrm{2}} \mathrm{tan}\:\mathrm{2}^{\mathrm{2}} \theta+…+\mathrm{2}^{{n}} \mathrm{tan}\:\mathrm{2}^{{n}} \theta \\ $$ Answered by prakash jain last updated…
Question Number 132091 by rs4089 last updated on 11/Feb/21 $${evaluate}\: \\ $$$$\int_{\mathrm{0}} ^{\mathrm{1}} \int_{\mathrm{0}} ^{\mathrm{1}} \int_{\mathrm{0}} ^{\mathrm{1}} \int_{\mathrm{0}} ^{\mathrm{1}} \int_{\mathrm{0}} ^{\mathrm{1}} \frac{{da}.{db}.{dc}.{dd}.{df}}{\mathrm{1}−{abcdf}} \\ $$ Answered…
Question Number 132090 by rs4089 last updated on 11/Feb/21 $${evaluate}\:\int_{−\infty} ^{\infty} \frac{{cosx}}{\left({x}^{\mathrm{2}} +\mathrm{1}\right)^{\mathrm{2}} }{dx} \\ $$ Answered by Olaf last updated on 11/Feb/21 $$\Omega\:=\:\int_{−\infty} ^{+\infty}…
Question Number 1016 by 123456 last updated on 14/May/15 $$\left[\left(\overset{\rightarrow} {{x}}×\overset{\rightarrow} {{a}}\right)×\overset{\rightarrow} {{b}}\right]×\overset{\rightarrow} {{x}}=\overset{\rightarrow} {{c}} \\ $$ Answered by rpatle69@gmail.com last updated on 14/May/15 $$\left[−\overset{\rightarrow}…
Question Number 66550 by Tony Lin last updated on 17/Aug/19 $$\int_{\mathrm{0}} ^{\mathrm{1}} \int_{\frac{{y}}{\mathrm{2}}\:} ^{\frac{\mathrm{1}}{\mathrm{2}}\:} {e}^{−{x}^{\mathrm{2}} } {dxdy}=? \\ $$ Commented by ~ À ® @…
Question Number 66548 by AnjanDey last updated on 17/Aug/19 $$\boldsymbol{{Evaluate}}:\int\sqrt{{x}\sqrt{{x}+\mathrm{1}}\:}{dx} \\ $$ Commented by AnjanDey last updated on 19/Aug/19 $${Please}\:{evaluate}\:{this}\:{integral}…{It}'{s}\:{very}\:{needful}\:{and}\:{urgent}… \\ $$ Terms of Service…
Question Number 132086 by SLVR last updated on 11/Feb/21 $$ \\ $$ Commented by mr W last updated on 11/Feb/21 $${it}'{s}\:{getting}\:{boring}! \\ $$$${please}\:{stop}\:{posting}\:{empty}\:{posts}\:{sir}! \\ $$$${try}\:{to}\:{study}\:{how}\:{to}\:{use}\:{the}\:{forum}\:{by}…