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Question Number 213658 by Danielacrsz last updated on 13/Nov/24 $${r}=\frac{\mathrm{112452}−\frac{\left(\mathrm{2108}\right)\left(\mathrm{3820}\right)}{\mathrm{80}}}{\:\sqrt{\mathrm{67778}−\frac{\left(\mathrm{2108}\right)^{\mathrm{2}} }{\mathrm{80}}\sqrt{\mathrm{232470}−\frac{\left(\mathrm{3820}\right)^{\mathrm{2}} }{\mathrm{80}}}}} \\ $$$$ \\ $$$$ \\ $$ Answered by MathematicalUser2357 last updated on 14/Nov/24…
Question Number 213298 by MathematicalUser2357 last updated on 02/Nov/24 $$\boldsymbol{{Question}}\:\mathrm{29}.\:{Theres}\:\mathrm{2}\:{same}-{ratio}\:{sequences}\:\left\{{a}_{{n}} \right\},\left\{{b}_{{n}} \right\}\:{with}\:{a}\:{ratio}\:{of}\:{non}-{zero} \\ $$$${And}\:{if}\:{two}\:{sums}\:{of}\:{each}\:{sequences}\:\left(\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}{a}_{{n}} ,\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}{b}_{{n}} \right)\:{are}\:{convergent},\:{and}\:{two}\:{equations} \\ $$$$\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}{a}_{{n}} {b}_{{n}}…
Question Number 212921 by nikif99 last updated on 26/Oct/24 $${Dear}\:{Tinkutara} \\ $$$${last}\:{days}\:{I}\:{face}\:{a}\:{problem}: \\ $$$${Very}\:{often}\:{I}\:{loose}\:{all}\:{my}\:{work}\:{when} \\ $$$${saving}\:\left(“{save}\:{file}''\right).\:{I}\:{get}\:{one}\:{or} \\ $$$${two}\:{blank}\:{lines}\:{which}\:{are}\:{saved}\:{in} \\ $$$${the}\:{relevant}\:{file}. \\ $$$${I}\:{use}\:{v}.\mathrm{2}.\mathrm{286},\:{android}\:\mathrm{12},\:{api}\:{level}\:\mathrm{31}. \\ $$$${Any}\:{suggestion}\:{or}\:{update}\:{would}\:{be} \\…
Question Number 212643 by ajfour last updated on 20/Oct/24 $${Guess}\:{we}\:{can}\:{make}\:{youtube}\: \\ $$$${educational}\:{videos}\:{using}\:{this}\: \\ $$$${forum}'{s}\:{editor}\:{in}\:{offline}\:{mode}. \\ $$$${Tinkutara}\:{team},\:{let}\:{me}\:{know}. \\ $$$${I}\:{alresdy}\:{made}\:{one}..{here} \\ $$ Commented by ajfour last updated…
Question Number 212621 by mr W last updated on 19/Oct/24 $$\mathrm{A}\:\mathrm{group}\:\mathrm{of}\:\boldsymbol{\mathrm{n}}\:\mathrm{people}\:\mathrm{are}\:\mathrm{standing}\:\mathrm{in} \\ $$$$\mathrm{a}\:\mathrm{circle}.\:\:\mathrm{They}\:\mathrm{are}\:\mathrm{numbered}\:\mathrm{with}\: \\ $$$$\mathrm{1},\:\mathrm{2},\:\mathrm{3},\:\mathrm{etc}.\:\mathrm{Starting}\:\mathrm{with}\:\mathrm{the}\:\mathrm{person} \\ $$$$\mathrm{with}\:\mathrm{the}\:\mathrm{number}\:\mathrm{1},\:\mathrm{every}\:\mathrm{second}\: \\ $$$$\mathrm{person}\:\mathrm{is}\:\mathrm{removed}\:\mathrm{from}\:\mathrm{the}\:\mathrm{circle}\:\mathrm{and}\: \\ $$$$\mathrm{this}\:\mathrm{process}\:\mathrm{continues}\:\mathrm{until}\:\mathrm{only}\:\mathrm{one}\: \\ $$$$\mathrm{person}\:\mathrm{remains}\:\mathrm{in}\:\mathrm{the}\:\mathrm{circle}.\:\:\mathrm{What} \\ $$$$\mathrm{will}\:\mathrm{be}\:\mathrm{the}\:\mathrm{number}\:\mathrm{of}\:\mathrm{the}\:\mathrm{last}\:\mathrm{person}…
Question Number 212544 by MrGaster last updated on 17/Oct/24 $$\underset{{n}\rightarrow\infty} {\mathrm{lim}}{n}^{\mathrm{2}} \left[\left(\mathrm{1}+\frac{\mathrm{1}}{{n}+\mathrm{1}}\right)^{{n}+\mathrm{1}} −\left(\mathrm{1}+\frac{\mathrm{1}}{{n}}\right)^{{n}} \right]=? \\ $$ Answered by lepuissantcedricjunior last updated on 17/Oct/24 $$\underset{\boldsymbol{{n}}\rightarrow+\infty} {\mathrm{lim}}\boldsymbol{{n}}^{\mathrm{2}}…
Question Number 212325 by MASANJAJJ last updated on 10/Oct/24 $${show}\:{that}\:\mathrm{1}+\sqrt{\mathrm{2}\:}+\mathrm{2}+……….+\mathrm{32}\sqrt{\mathrm{2}\:}\:{is}\:\mathrm{63}\sqrt{\mathrm{2}}\:+\mathrm{63} \\ $$ Answered by Ghisom last updated on 10/Oct/24 $$\underset{{k}=\mathrm{0}} {\overset{{n}} {\sum}}{a}^{{k}} =\frac{{a}^{{n}+\mathrm{1}} −\mathrm{1}}{{a}−\mathrm{1}} \\…
Question Number 212327 by MASANJAJJ last updated on 10/Oct/24 $${if}\:\left({a}+\frac{\mathrm{1}}{{a}}\right)=\mathrm{15}\:{find}\:{the}\:{value}\:{of}\:\left({a}^{\mathrm{2}} \:+\frac{\mathrm{1}}{{a}^{\mathrm{2}} }\right) \\ $$ Answered by universe last updated on 10/Oct/24 $$\left({a}+\frac{\mathrm{1}}{{a}}\right)^{\mathrm{2}} \:=\:\mathrm{15}^{\mathrm{2}} \\ $$$${a}^{\mathrm{2}}…
Question Number 212213 by mathkun last updated on 06/Oct/24 $$\mathrm{Can}\:\mathrm{some}\:\mathrm{please}\:\mathrm{explain}\:\mathrm{is}\:\mathrm{there}\:\mathrm{any}\:\mathrm{use}\:\mathrm{of}\:\mathrm{imaginary}\:\mathrm{numbers}\:\mathrm{in}\:\mathrm{real}\:\mathrm{life}? \\ $$$$\mathrm{I}\:\mathrm{have}\:\mathrm{heard}\:\mathrm{that}\:\mathrm{this}\:\mathrm{number}\:\mathrm{has}\:\mathrm{been}\:\mathrm{used}\:\mathrm{in}\:\mathrm{many}\:\mathrm{different}\:\mathrm{fields}.\: \\ $$$$\mathrm{Why}\:\mathrm{use}\:\mathrm{a}\:\mathrm{number}\:\mathrm{which}\:\mathrm{is}\:\mathrm{not}\:\mathrm{real}. \\ $$$$ \\ $$$$ \\ $$$$ \\ $$ Answered by Frix…