Question Number 76360 by mathmax by abdo last updated on 26/Dec/19 $${calculate}\:\:\int_{\mathrm{1}} ^{\infty} \:\:\:\:\frac{{dx}}{{x}^{\mathrm{3}} \left({x}^{\mathrm{2}} −\mathrm{2}{x}+\mathrm{3}\right)} \\ $$ Commented by abdomathmax last updated on 29/Dec/19…
Question Number 10825 by Saham last updated on 26/Feb/17 $$\mathrm{Given}\:\mathrm{that}\: \\ $$$$\mathrm{sin}\left(\mathrm{x}\right)\:−\:\mathrm{sin}\left(\mathrm{y}\right)\:=\:\mathrm{sin}\left(\theta\right) \\ $$$$\mathrm{cos}\left(\mathrm{x}\right)\:+\:\mathrm{cos}\left(\mathrm{y}\right)\:=\:\mathrm{cos}\left(\theta\right) \\ $$$$\mathrm{Show}\:\mathrm{that}\: \\ $$$$\mathrm{cos}\left(\mathrm{x}\:+\:\mathrm{y}\right)\:=\:−\frac{\mathrm{1}}{\mathrm{2}} \\ $$ Answered by mrW1 last updated…
Question Number 76361 by mathmax by abdo last updated on 26/Dec/19 $${let}\:{A}\:=\begin{pmatrix}{\mathrm{1}\:\:\:\:\:\:\:\:\:\:\mathrm{1}}\\{\mathrm{1}\:\:\:\:\:\:\:\:\:\:\:\mathrm{1}}\end{pmatrix} \\ $$$$\left.\mathrm{1}\right)\:{calculate}\:{A}^{{n}} \\ $$$$\left.\mathrm{2}\right)\:{find}\:{e}^{{A}} \:\:,{e}^{−{A}} \\ $$$$\left.\mathrm{3}\right)\:{find}\:{sinA}\:{and}\:{cosA} \\ $$$$\left.\mathrm{4}\right)\:{find}\:{ch}\left({A}\right)\:{and}\:{sh}\left({A}\right) \\ $$ Commented by…
Question Number 76359 by mathmax by abdo last updated on 26/Dec/19 $${calculate}\:\int_{−\infty} ^{\infty} \:\:\frac{{dx}}{\left({x}^{\mathrm{2}} −\mathrm{3}{x}+\mathrm{7}\right)^{\mathrm{2}} } \\ $$ Commented by mathmax by abdo last updated…
Question Number 76356 by mathmax by abdo last updated on 26/Dec/19 $${find}\:{f}\left({x}\right)\:=\int\:\:\frac{{dt}}{\:\sqrt{{t}^{\mathrm{2}} −{xt}\:+\mathrm{1}}}\:\:{with}\:{x}\:{real}. \\ $$ Commented by mathmax by abdo last updated on 28/Dec/19 $${t}^{\mathrm{2}}…
Question Number 10820 by chux last updated on 26/Feb/17 Answered by bar Jesús last updated on 26/Feb/17 $$\mathrm{8}{log}_{\mathrm{2}} {x}={log}_{\mathrm{2}} {x}^{\mathrm{8}} ,{x}=\mathrm{2} \\ $$$$\left({x}−\mathrm{1}\right){log}_{{x}} \mathrm{2}={log}_{{x}} \mathrm{2}^{\left({x}−\mathrm{1}\right)}…
Question Number 76354 by mathmax by abdo last updated on 26/Dec/19 $${calculate}\:\sum_{{n}=\mathrm{1}} ^{\infty} \left(−\mathrm{1}\right)^{{n}} \:{arctan}\left(\frac{\mathrm{1}}{{n}^{\mathrm{2}} \:+{n}}\right) \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 76355 by mathmax by abdo last updated on 26/Dec/19 $${find}\:\int\:\frac{{arctan}\left(\sqrt{\mathrm{1}+{x}}\right)}{\mathrm{2}+{x}}{dx} \\ $$ Answered by john santu last updated on 27/Dec/19 $${let}\:\sqrt{\mathrm{1}+{x}}={tant}\:,\:\mathrm{1}+{x}={tan}^{\mathrm{2}} {t}\:, \\…
Question Number 76352 by mathmax by abdo last updated on 26/Dec/19 $${calculate}\:\int_{\mathrm{0}} ^{\infty} \:\:\frac{{sin}\left({arctan}\left({x}^{\mathrm{2}} +\mathrm{2}\right)\right)}{{x}^{\mathrm{2}} \:+\mathrm{1}}{dx} \\ $$ Commented by mathmax by abdo last updated…
Question Number 141890 by bekzodjumayev last updated on 24/May/21 Commented by bekzodjumayev last updated on 24/May/21 $$\boldsymbol{{Please}}\:\boldsymbol{{help}} \\ $$ Terms of Service Privacy Policy Contact:…