Question Number 12045 by 7991 last updated on 10/Apr/17 $${how}\:{much}\:{matrices}\:{of}\:{integers}\:{number} \\ $$$${A}=\begin{bmatrix}{{a}}&{{b}}\\{{c}}&{{d}}\end{bmatrix}{if}\:{A}^{\mathrm{2}} ={I}\:{and}\:{b}={c} \\ $$ Answered by sma3l2996 last updated on 10/Apr/17 $${A}^{\mathrm{2}} =\begin{bmatrix}{{a}}&{{b}}\\{{c}}&{{d}}\end{bmatrix}\begin{bmatrix}{{a}}&{{b}}\\{{c}}&{{d}}\end{bmatrix}=\begin{bmatrix}{{a}^{\mathrm{2}} +{bc}}&{{ab}+{db}}\\{{ac}+{dc}}&{{bc}+{d}^{\mathrm{2}}…
Question Number 12019 by Nayon last updated on 09/Apr/17 Answered by ajfour last updated on 10/Apr/17 Commented by ajfour last updated on 10/Apr/17 $${AC}^{\:\mathrm{2}} +{BD}^{\mathrm{2}}…
Question Number 77554 by TawaTawa last updated on 07/Jan/20 Commented by TawaTawa last updated on 07/Jan/20 $$\mathrm{Please}\:\mathrm{help}\:\mathrm{with}\:\:\:\mathrm{1},\:\mathrm{2},\:\mathrm{3} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 12013 by tawa last updated on 09/Apr/17 $$\mathrm{The}\:\mathrm{slope}\:\mathrm{of}\:\mathrm{a}\:\mathrm{curve}\:\mathrm{is},\:\mathrm{7x}\:+\:\mathrm{3}\:\:\mathrm{and}\:\mathrm{it}\:\mathrm{passes}\:\mathrm{through}\:\mathrm{the}\:\mathrm{point}\:\left(\mathrm{2},\:\mathrm{4}\right), \\ $$$$\mathrm{Find}\:\mathrm{the}\:\mathrm{equation}\:\mathrm{of}\:\mathrm{the}\:\mathrm{point} \\ $$ Answered by ajfour last updated on 09/Apr/17 $$\frac{{dy}}{{dx}}=\mathrm{7}{x}+\mathrm{3} \\ $$$$\int{dy}=\int\left(\mathrm{7}{x}+\mathrm{3}\right){dx} \\…
Question Number 12008 by tawa last updated on 09/Apr/17 Commented by chux last updated on 09/Apr/17 $$\mathrm{which}\:\mathrm{country}\:\mathrm{do}\:\mathrm{you}\:\mathrm{come}\:\mathrm{from}\:\mathrm{tawa} \\ $$ Answered by ajfour last updated on…
Question Number 77539 by TawaTawa last updated on 07/Jan/20 Commented by TawaTawa last updated on 07/Jan/20 $$\mathrm{Sir}\:\:\mathrm{mrW}\:\mathrm{please}\:\mathrm{solve}\:\mathrm{this}\:\mathrm{question}\:\mathrm{posted}\:\mathrm{by}\:\:\mathrm{Maclaurin}. \\ $$$$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{more}\:\mathrm{sir} \\ $$ Commented by mr W…
Question Number 11991 by FilupS last updated on 09/Apr/17 $$\mathrm{show}\:\mathrm{that}: \\ $$$$\frac{\mathrm{2}{n}}{\mathrm{2}{n}+\mathrm{1}}=\mathrm{1}−\frac{\mathrm{1}}{\mathrm{2}{n}+\mathrm{1}} \\ $$$$\mathrm{via}\:\mathrm{power}\:\mathrm{series},\:\mathrm{and}\:\mathrm{other}\:\mathrm{methods} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 11969 by tawa last updated on 08/Apr/17 $$\mathrm{A}\:\mathrm{gas}\:\mathrm{occupies}\:\mathrm{30}\:\mathrm{dm}^{\mathrm{3}} \:\mathrm{at}\:\mathrm{s}\:\mathrm{t}\:\mathrm{p},\:\:\mathrm{what}\:\mathrm{volume}\:\mathrm{will}\:\mathrm{it}\:\mathrm{occupy}\:\mathrm{at}\:\mathrm{91}°\mathrm{C}\: \\ $$$$\mathrm{and}\:\mathrm{380}\:\mathrm{mmHg} \\ $$ Answered by sandy_suhendra last updated on 08/Apr/17 $$\mathrm{V}_{\mathrm{1}} =\mathrm{30}\:\mathrm{dm}^{\mathrm{3}} \\…
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Question Number 77481 by TawaTawa last updated on 06/Jan/20 Answered by mr W last updated on 06/Jan/20 Commented by mr W last updated on 06/Jan/20…