Question Number 77804 by BK last updated on 10/Jan/20
Commented by MJS last updated on 10/Jan/20
$$\mathrm{is}\:\mathrm{2}^{\mid{x}\mid} \:\mathrm{positive}\:\mathrm{or}\:\mathrm{negative}? \\ $$$$\mathrm{what}'\mathrm{s}\:\mathrm{the}\:\mathrm{range}\:\mathrm{of}\:\mathrm{sin}\:{x}^{\mathrm{2}} \:? \\ $$$$\mathrm{what}\:\mathrm{are}\:{your}\:\mathrm{thoughts},\:\mathrm{Sir}\:\mathrm{BK}? \\ $$
Commented by mr W last updated on 11/Jan/20
$${this}\:{Mr}.\:{BK}\:{is}\:{not}\:{interested}\:{in} \\ $$$${lerning}\:{methmatics}\:{and}\:{exchanging} \\ $$$${with}\:{others},\:{which}\:{is}\:{the}\:{purpose}\:{of} \\ $$$${this}\:{forum}.\:{what}\:{a}\:{pity}!\:{once}\:{i}\:{asked} \\ $$$${him}\:{what}'{s}\:{his}\:{purpose}\:{then}.\:{he}\:{ignored} \\ $$$${also}\:{this}\:{question}\:{of}\:{mine}.\:{it}\:{seems} \\ $$$${that}\:{he}\:{just}\:{posts}\:{some}\:{questions}\:{from} \\ $$$${somewhere},\:{i}.{e}.\:{not}\:{his}\:{own}\:{questions}, \\ $$$${and}\:{awaits}\:{that}\:{somebody}\:{gives}\:{him}\:{a}\: \\ $$$${solution}.\:{who}\:{knows}\:{what}\:{he}\:{does}\:{with} \\ $$$${the}\:{solution}.\:{angway}\:{it}'{s}\:{a}\:{strange} \\ $$$${behaviour}. \\ $$