Question Number 53063 by Tristan last updated on 16/Jan/19 $$\mathrm{Comment}\:\mathrm{resoudre}\:\mathrm{cette}\:\mathrm{eqution}\: \\ $$$$\mathrm{2}^{\mathrm{x}} ×\mathrm{3}−\mathrm{y}^{\mathrm{2}} =−\mathrm{1} \\ $$ Answered by MJS last updated on 18/Jan/19 $$\left(\mathrm{1}\right) \\…
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Question Number 184126 by Noorzai last updated on 03/Jan/23 Answered by Rasheed.Sindhi last updated on 03/Jan/23 $$\because\mathrm{KK}\:\&\:\mathrm{KLK}\:\mathrm{have}\:\mathrm{same}\:\mathrm{unit}-\mathrm{digit} \\ $$$$\therefore\mathrm{K}^{\mathrm{2}} =\mathrm{10c}+\mathrm{K}\:;\:\mathrm{c}=\mathrm{0},\mathrm{1},\mathrm{2},…,\mathrm{8} \\ $$$$\mathrm{possible}\:\mathrm{values}\:\mathrm{for}\:\mathrm{K}: \\ $$$$\mathrm{K}=\mathrm{1},\mathrm{5},\mathrm{6} \\…
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Question Number 184048 by cortano1 last updated on 02/Jan/23 $$\:\:\begin{cases}{{u}_{\mathrm{0}} \:=\:\mathrm{2}}\\{{u}_{{n}+\mathrm{1}} \:=\:\frac{\mathrm{2}{u}_{{n}} \:−\mathrm{1}}{{u}_{{n}} }}\end{cases} \\ $$$$\:\:\:{Find}\:{u}_{{n}} . \\ $$ Answered by SEKRET last updated on…
Question Number 52960 by Otchere Abdullai last updated on 15/Jan/19 $${A}\:{wholesaler}\:{buys}\:{an}\:{article}\:{at}“\:\$\mathrm{32}\: \\ $$$${less}\:\mathrm{12}.\mathrm{5\%}''.\:{she}\:{then}\:{sells}\:{the}\:{article} \\ $$$${at}\:{a}\:{gain}\:{of}\:\mathrm{25\%}\:{of}\:{her}\:{cost}\:{after}\: \\ $$$${allowing}\:{a}\:\:\mathrm{20\%}\:{discount}\:{on}\:{her}\: \\ $$$${marked}\:{price}.\:{what}\:{is}\:{the}\:{marked}\: \\ $$$${price}. \\ $$$${please}\:{sir}\:{help}\:{me}\:{thanks} \\ $$…
Question Number 184028 by Rasheed.Sindhi last updated on 02/Jan/23 $$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\: \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\boldsymbol{\mathrm{H}}^{\boldsymbol{\mathrm{A}}^{\boldsymbol{\mathrm{P}}} \boldsymbol{\mathrm{P}}} \boldsymbol{\mathrm{Y}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\boldsymbol{\mathrm{Y}}_{\boldsymbol{\mathrm{E}}_{\boldsymbol{\mathrm{A}}} \boldsymbol{\mathrm{R}}} \:! \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\overline {\lfloor\boldsymbol{\mathrm{e}}\rfloor\lfloor\boldsymbol{\mathrm{i}}-\boldsymbol{\mathrm{i}}\rfloor\lfloor\boldsymbol{\mathrm{e}}\rfloor\lfloor\boldsymbol{\pi}\rfloor}\:\: \\ $$ Terms of…
Question Number 184030 by Mastermind last updated on 02/Jan/23 $$\mathrm{How}\:\mathrm{many}\:\mathrm{words}\:\mathrm{can}\:\mathrm{be}\:\mathrm{made}\: \\ $$$$\mathrm{from}\:\mathrm{5}\:\mathrm{letters}\:\mathrm{if} \\ $$$$\left(\mathrm{a}\right)\:\mathrm{all}\:\mathrm{letters}\:\mathrm{are}\:\mathrm{different} \\ $$$$\left(\mathrm{b}\right)\:\mathrm{2}\:\mathrm{letters}\:\mathrm{are}\:\mathrm{identical} \\ $$$$\left(\mathrm{c}\right)\:\mathrm{all}\:\mathrm{letters}\:\mathrm{are}\:\mathrm{different}\:\mathrm{but}\:\mathrm{2} \\ $$$$\mathrm{partucular}\:\mathrm{letters}\:\mathrm{cannot}\:\mathrm{be} \\ $$$$\mathrm{adjacent}. \\ $$$$ \\…