Question Number 131858 by mohammad17 last updated on 09/Feb/21 Commented by mohammad17 last updated on 09/Feb/21 $${how}\:{can}\:{it}\:{solve}\:{this} \\ $$ Commented by Dwaipayan Shikari last updated…
Question Number 66276 by gunawan last updated on 12/Aug/19 $$\mathrm{If}\:{a}\:\mathrm{and}\:{b}\:\mathrm{is}\:\mathrm{root}\:\mathrm{equation} \\ $$$$\mathrm{3}^{\mathrm{log}_{\mathrm{3}} \left(\mathrm{4x}^{\mathrm{2}} +\mathrm{3}\right)} +\mathrm{4}^{\mathrm{log}_{\mathrm{2}} \left(\mathrm{x}^{\mathrm{2}} −\mathrm{1}\right)} =\mathrm{49} \\ $$$$\mathrm{then} \\ $$$${a}+{b}=.. \\ $$$${a}.\:\mathrm{3} \\…
Question Number 66274 by mr mondo last updated on 12/Aug/19 Commented by mr W last updated on 12/Aug/19 $${the}\:{answer}\:{is}\:{given}\:{in}\:{Q}\mathrm{66162}! \\ $$ Terms of Service Privacy…
Question Number 131785 by faysal last updated on 08/Feb/21 $${ABC}\:{triangle}'{s}\:{A}+{B}={C}=\mathrm{90}°\:{prove}\:{that} \\ $$$$\mathrm{sin}\:^{\mathrm{2}} {A}−{sin}^{\mathrm{2}} {B}+{sin}^{\mathrm{2}} {C}=\mathrm{0} \\ $$ Answered by Dwaipayan Shikari last updated on 08/Feb/21…
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Question Number 131751 by aurpeyz last updated on 08/Feb/21 Answered by physicstutes last updated on 08/Feb/21 $$\:\mathcal{I}\:=\:\frac{{V}}{\mathcal{R}} \\ $$$$\Rightarrow\:\frac{\mathrm{2}}{\mathrm{10},\mathrm{000}}\:=\:\frac{\mathrm{20}}{\mathcal{R}} \\ $$$$\Rightarrow\:{R}\:=\:\mathrm{100},\mathrm{000}\:\Omega \\ $$ Terms of…
Question Number 131745 by liberty last updated on 08/Feb/21 Commented by guyyy last updated on 18/Feb/21 Commented by guyyy last updated on 18/Feb/21 Commented by…
Question Number 672 by 123456 last updated on 21/Feb/15 $${if}\:{a}_{{n}} ,{b}_{{n}} ,{c}_{{n}} \:{are}\:{real}\:{sequence}\:{with} \\ $$$${a}_{{n}} >\mathrm{0},{b}_{{n}} >\mathrm{0},{c}_{{n}} >\mathrm{0} \\ $$$${and} \\ $$$${a}_{{n}} ^{{n}} <{b}_{{n}} <{c}_{{n}}…
Question Number 657 by 123456 last updated on 21/Feb/15 $${if}\:\left({a}_{{n}} \right)\:{and}\:\left({b}_{{n}} \right)\:{are}\:{two}\:{real}\:{sequence} \\ $$$${such}\:{that}\:{e}^{{a}_{{n}} } ={a}_{{n}} +{e}^{{b}_{{n}} } \\ $$$$\left.{a}\right)\:{proof}\:{that}\:{a}_{{n}} >\mathrm{0}\Rightarrow{b}_{{n}} >\mathrm{0} \\ $$$$\left.{b}\right)\:{if}\:{a}_{{n}} >\mathrm{0}\forall{n}\in\mathbb{N}\:{if}\:\underset{{n}=\mathrm{0}}…