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Question-86946

Question Number 86946 by A8;15: last updated on 01/Apr/20 Commented by john santu last updated on 01/Apr/20 $$\mathrm{A}^{\mathrm{2}} \:\mathrm{sin}\:^{\mathrm{2}} \mathrm{Ax}\:\:=\:\mathrm{B}^{\mathrm{2}} \:\mathrm{sin}\:\mathrm{Bx}\: \\ $$$$\Rightarrow\mathrm{sin}\:^{\mathrm{2}} \:\mathrm{Ax}\:=\:\frac{\mathrm{B}^{\mathrm{2}} }{\mathrm{A}^{\mathrm{2}}…

Question-21394

Question Number 21394 by mondodotto@gmail.com last updated on 22/Sep/17 Answered by mrW1 last updated on 22/Sep/17 $$\mathrm{t}=\sqrt{\mathrm{2x}+\mathrm{1}} \\ $$$$\mathrm{x}=\frac{\mathrm{t}^{\mathrm{2}} −\mathrm{1}}{\mathrm{2}} \\ $$$$\mathrm{dx}=\mathrm{tdt} \\ $$$$\int\mathrm{x}\sqrt{\mathrm{2x}+\mathrm{1}}\:\mathrm{dx}=\int\frac{\mathrm{t}^{\mathrm{2}} −\mathrm{1}}{\mathrm{2}}×\mathrm{t}×\mathrm{tdt}…

Question-21392

Question Number 21392 by mondodotto@gmail.com last updated on 22/Sep/17 Answered by mrW1 last updated on 22/Sep/17 $$\mathrm{f}\left(\mathrm{x}\right)=\mathrm{2x}^{\mathrm{2}} +\mathrm{23}=\mathrm{2}\left(\mathrm{x}−\mathrm{0}\right)^{\mathrm{2}} +\mathrm{23} \\ $$ Terms of Service Privacy…

Question-21366

Question Number 21366 by Glorious Man last updated on 22/Sep/17 Answered by mrW1 last updated on 22/Sep/17 $$\left[\mathrm{ADF}\right]=\left[\mathrm{ABE}\right]=\mathrm{25}+\mathrm{70}=\mathrm{95} \\ $$$$\Rightarrow\left[\mathrm{EHG}\right]=\mathrm{95}−\mathrm{25}−\mathrm{55}=\mathrm{15} \\ $$$$\left[\mathrm{HGJB}\right]=\mathrm{2}×\mathrm{95}−\mathrm{15}−\mathrm{80}=\mathrm{95} \\ $$ Commented…

Blague-de-matheux-Les-mathe-maticiens-n-urinent-pas-Ils-font-pipi-Bon-ok-je-sors-

Question Number 152417 by Olaf_Thorendsen last updated on 28/Aug/21 $$\boldsymbol{\mathrm{Blague}}\:\boldsymbol{\mathrm{de}}\:\boldsymbol{\mathrm{matheux}}. \\ $$$$ \\ $$$$\mathrm{Les}\:\mathrm{math}\acute {\mathrm{e}maticiens}\:\mathrm{n}'\mathrm{urinent}\:\mathrm{pas}. \\ $$$$ \\ $$$$\mathrm{Ils}\:\mathrm{font}\:\pi\pi. \\ $$$$ \\ $$$$\mathrm{Bon}\:\mathrm{ok}\:\mathrm{je}\:\mathrm{sors}… \\ $$…