Question Number 210766 by lmcp1203 last updated on 18/Aug/24 $${please} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 210728 by peter frank last updated on 18/Aug/24 Answered by Spillover last updated on 18/Aug/24 Terms of Service Privacy Policy Contact: info@tinkutara.com
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Question Number 210718 by hardmath last updated on 17/Aug/24 $$\mathrm{If}\:\:\:\mathrm{sin1}°\:=\:\mathrm{a} \\ $$$$\frac{\mathrm{1}}{\mathrm{cos1}°\centerdot\mathrm{cos2}°}\:+\:\frac{\mathrm{1}}{\mathrm{cos2}°\centerdot\mathrm{cos3}°}\:+…+\:\frac{\mathrm{1}}{\mathrm{cos44}°\centerdot\mathrm{cos45}°}\:=\:? \\ $$ Commented by Spillover last updated on 18/Aug/24 $${i}\:{get}\:\mathrm{22}\:? \\ $$ Terms…
Question Number 210701 by noraell last updated on 17/Aug/24 Answered by Berbere last updated on 18/Aug/24 $${f}'\left({x}\right)=\mathrm{3}{x}^{\mathrm{2}} +\mathrm{1}\geqslant\mathrm{1}\:{Increase}\:{steictly}\: \\ $$$${f}\:{is}\:{bijection}\:\mathbb{R}\rightarrow\mathbb{R}\Rightarrow{f}^{−} \:{existe} \\ $$$$\mathrm{2}{f}\left({x}\right)+\mathrm{3}{f}^{−} \left({x}\right)=\mathrm{10} \\…
Question Number 210685 by Tamukong last updated on 16/Aug/24 $${find} \\ $$$$\int\frac{\mathrm{1}}{{x}}{dx} \\ $$ Answered by Tinku Tara last updated on 16/Aug/24 $$\mathrm{ln}\:{x}\:+{C} \\ $$…
Question Number 210679 by peter frank last updated on 16/Aug/24 Answered by mr W last updated on 16/Aug/24 $${RH}_{\mathrm{16}°{C}} =\frac{\mathrm{273}.\mathrm{15}+\mathrm{16}}{\mathrm{273}.\mathrm{15}+\mathrm{20}}×\frac{\mathrm{17}.\mathrm{5}}{\mathrm{13}.\mathrm{6}}×\mathrm{36\%}\approx\mathrm{46\%} \\ $$ Commented by peter…
Question Number 210689 by Tawa11 last updated on 16/Aug/24 Answered by mm1342 last updated on 16/Aug/24 $${AM}={MD}={a}\Rightarrow{BC}=\frac{\mathrm{2}}{\mathrm{3}}{a} \\ $$$$\frac{{s}}{{S}}=\frac{\frac{{BC}×{h}}{\mathrm{2}}}{\frac{\left({BC}+{AD}\right){h}}{\mathrm{2}}}=\frac{{BC}}{{BC}+{AD}}=\frac{\frac{\mathrm{2}}{\mathrm{3}}{a}}{\mathrm{2}{a}+\frac{\mathrm{2}}{\mathrm{3}}{a}} \\ $$$$=\frac{\mathrm{1}}{\mathrm{4}}\:\checkmark \\ $$$$ \\ $$…
Question Number 210666 by universe last updated on 15/Aug/24 $$\:\:\mathrm{prove}\:\mathrm{that}\:\mathrm{p}\left(\mathrm{n}\right)\:\mathrm{is}\:\mathrm{integer}\:\forall\:\mathrm{n}\in\mathbb{Z} \\ $$$$\:\:\:\mathrm{p}\left(\mathrm{n}\right)\:=\:\frac{\mathrm{3n}^{\mathrm{7}} +\mathrm{7n}^{\mathrm{3}} +\mathrm{11n}}{\mathrm{21}} \\ $$ Answered by A5T last updated on 15/Aug/24 $${Let}\:{f}\left({n}\right)=\mathrm{3}{n}^{\mathrm{7}} +\mathrm{7}{n}^{\mathrm{3}}…
Question Number 210660 by hardmath last updated on 15/Aug/24 Terms of Service Privacy Policy Contact: info@tinkutara.com