Question Number 192763 by TUN last updated on 26/May/23
$${Prove}\:{that}: \\ $$$${sin}\:{A}\:+\:{sin}\:{B}\:+\:{sin}\:{C}\:>\:\mathrm{2} \\ $$$$\left({A},{B},{C}\:\in\:\frac{\pi}{\mathrm{2}}\right) \\ $$
Answered by JDamian last updated on 26/May/23
$${really}? \\ $$$$ \\ $$$$\left({A},{B},{C}\:\in\frac{\pi}{\mathrm{2}}\right)\:\:{what}\:{does}\:{it}\:{mean}? \\ $$$$\:{when}\:\frac{\pi}{\mathrm{2}}\:{is}\:{a}\:{set}\:{since}? \\ $$
Commented by TUN last updated on 29/May/23
$${I}'{m}\:{sorry} \\ $$$${Repair}\:\mathrm{0}<{A},{B},{C}<\frac{\pi}{\mathrm{2}} \\ $$