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Question Number 73774 by mind is power last updated on 15/Nov/19 $$\mathrm{hello}\:,\mathrm{show}\:\mathrm{that} \\ $$$$\underset{\mathrm{n}\geqslant\mathrm{1}} {\sum}\frac{\left(−\mathrm{1}\right)^{\mathrm{n}} \mathrm{nsin}\left(\mathrm{n}\right)}{\mathrm{1}+\mathrm{n}^{\mathrm{2}} }=\frac{\pi\mathrm{e}^{\mathrm{1}} −\pi\mathrm{e}^{−\mathrm{1}} }{−\mathrm{2e}^{\pi} +\mathrm{2e}^{−\pi} } \\ $$$$\mathrm{indication}\:,\mathrm{Residus}\:\mathrm{Theorem}\:\mathrm{let} \\ $$$$\mathrm{f}\left(\mathrm{z}\right)=\frac{\mathrm{zsin}\left(\mathrm{z}\right)}{\left(\mathrm{1}+\mathrm{z}^{\mathrm{2}}…

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Question Number 139278 by Agnibhoo last updated on 25/Apr/21 $$\sqrt{\frac{\mathrm{3000000}\:+\:\mathrm{3000000}}{\mathrm{4000000}\:+\:\mathrm{4000000}}}\:=\:? \\ $$ Answered by Rasheed.Sindhi last updated on 25/Apr/21 $$\sqrt{\frac{\mathrm{6}×\cancel{\mathrm{1000000}}}{\mathrm{8}×\cancel{\mathrm{1000000}}}}=\frac{\sqrt{\mathrm{3}}}{\mathrm{2}} \\ $$ Commented by otchereabdullai@gmail.com…

0-1-e-x-2-dx-e-1-2-1-4-1-6-1-8-1-10-1-

Question Number 139226 by Dwaipayan Shikari last updated on 24/Apr/21 $$\int_{\mathrm{0}} ^{\mathrm{1}} {e}^{{x}^{\mathrm{2}} } {dx}=\frac{{e}}{\mathrm{1}+\frac{\mathrm{2}}{\mathrm{1}+\frac{\mathrm{4}}{\mathrm{1}+\frac{\mathrm{6}}{\mathrm{1}+\frac{\mathrm{8}}{\mathrm{1}+\frac{\mathrm{10}}{\mathrm{1}+…}}}}}} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com

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Question Number 8130 by tawakalitu last updated on 01/Oct/16 $${It}\:{is}\:{desired}\:{to}\:{set}\:{the}\:{operating}\:{point}\:{at}\:\mathrm{3}.\mathrm{5}{V},\: \\ $$$$\mathrm{2}.\mathrm{2}{mA}\:{by}\:{biasing}\:{a}\:{silicon}\:{transistor}\:{with}\: \\ $$$$\left.{feedback}\:{resistor}\right).\:{if}\:\:{Beta}\:=\:\mathrm{100},\:{find}\:{the}\:{value} \\ $$$${of}\:{R}_{{b}} \:{and}\:{R}_{{c}} \:\:{taking}\:\:{V}_{{be}} \:=\:\mathrm{0}.\mathrm{7}{V} \\ $$ Terms of Service Privacy…