Question Number 58 by abyaya last updated on 25/Jan/15 $${sin}\mathrm{450}+{cos}\mathrm{450} \\ $$ Answered by kader last updated on 17/Nov/14 $$\mathrm{sin}\:\left(\mathrm{360}+\mathrm{90}\right)+\mathrm{cos}\:\left(\mathrm{360}+\mathrm{90}\right) \\ $$$$\mathrm{sin}\:\mathrm{90}+\mathrm{cos}\:\mathrm{90} \\ $$$$\mathrm{1}+\mathrm{0}=\mathrm{1} \\…
Question Number 65592 by Rio Michael last updated on 31/Jul/19 $$\int_{\mathrm{0}} ^{\frac{\mathrm{1}}{\mathrm{3}}} \left(\mathrm{3}{x}\:+\:\mathrm{1}\right)^{\mathrm{5}} {dx}\:= \\ $$ Answered by mr W last updated on 31/Jul/19 $$\int_{\mathrm{0}}…
Question Number 65593 by Rio Michael last updated on 31/Jul/19 $$\int_{\mathrm{0}} ^{\frac{\mathrm{1}}{\mathrm{3}}} \left(\mathrm{3}{x}\:+\:\mathrm{1}\right)^{\mathrm{5}} {dx}\:= \\ $$ Commented by mathmax by abdo last updated on 31/Jul/19…
Question Number 56 by 9663288757 last updated on 25/Jan/15 $$\mathrm{45}+\mathrm{34} \\ $$ Answered by mathg last updated on 09/Nov/14 $$\mathrm{45}+\mathrm{34}=\mathrm{79} \\ $$ Terms of Service…
Question Number 53 by surabhi last updated on 25/Jan/15 $$\mathrm{Evaluate}\:\int_{\mathrm{1}} ^{\mathrm{4}} \frac{\left({x}^{\mathrm{2}} +{x}\right)}{\:\sqrt{\mathrm{2}{x}+\mathrm{1}}}{dx} \\ $$ Answered by surabhi last updated on 04/Nov/14 $$\left[\left({x}^{\mathrm{2}} +{x}\right)\centerdot\sqrt{\mathrm{2}{x}+\mathrm{1}}\right]_{\mathrm{2}} ^{\mathrm{4}}…
Question Number 65589 by mr W last updated on 31/Jul/19 Commented by mr W last updated on 31/Jul/19 $${Answer}\:{to}\:{Q}\mathrm{65277} \\ $$ Commented by Tanmay chaudhury…
Question Number 131121 by abdurehime last updated on 01/Feb/21 Answered by mathmax by abdo last updated on 01/Feb/21 $$\left.\mathrm{A}\right)\:\:\mathrm{x}^{\mathrm{2}} +\mathrm{y}^{\mathrm{2}} \:=\mathrm{25}\:\Rightarrow\mathrm{y}^{\mathrm{2}} \:=\mathrm{25}−\mathrm{x}^{\mathrm{2}} \:\Rightarrow\mathrm{y}=\xi\sqrt{\mathrm{25}−\mathrm{x}^{\mathrm{2}} }\left(\:\xi=\overset{−} {+}\mathrm{1}\right)\:\Rightarrow…
Question Number 51 by surabhi last updated on 25/Jan/15 $$\mathrm{Evaluate}\:\int_{\mathrm{0}} ^{\pi/\mathrm{2}} {x}\mathrm{cos}\:{x}\:{dx} \\ $$ Answered by surabhi last updated on 04/Nov/14 $$\int_{\mathrm{0}} ^{\pi/\mathrm{2}} {x}\mathrm{cos}\:{x}\:{dx}=\left[{x}\mathrm{sin}\:{x}\right]_{\mathrm{0}} ^{\pi/\mathrm{2}}…
Question Number 65587 by naka3546 last updated on 31/Jul/19 $${Prove}\:\:{that} \\ $$$$\:\:\:\:\:\mathrm{1}^{\mathrm{3}} \:+\:\mathrm{2}^{\mathrm{3}} \:+\:\mathrm{3}^{\mathrm{3}} \:+\:\ldots\:+\:{n}^{\mathrm{3}} \:\:=\:\:\left(\mathrm{1}+\mathrm{2}+\mathrm{3}+…+{n}\right)^{\mathrm{2}} \\ $$ Commented by naka3546 last updated on 31/Jul/19…
Question Number 50 by surabhi last updated on 25/Jan/15 $$\mathrm{Evaluate}\:\:\:\int\left({x}+\mathrm{1}\right)\sqrt{\mathrm{1}−{x}−{x}^{\mathrm{2}} }{dx}. \\ $$ Commented by 123456 last updated on 13/Dec/14 $$\mathrm{tente}?\mathrm{completar}\:\mathrm{quadrados}\:\mathrm{e}\:\mathrm{fca}\:\mathrm{uma}\:\mathrm{substutuico} \\ $$ Answered by…