Question Number 116524 by abdullahquwatan last updated on 04/Oct/20
$$\mathrm{if}\:\alpha+\beta+\gamma=\mathrm{180}° \\ $$ $$\mathrm{prove}: \\ $$ $$\mathrm{sin}\:\alpha+\mathrm{sin}\:\beta+\mathrm{sin}\:\gamma+\mathrm{sin}\:\frac{\pi}{\mathrm{3}}\:<\:\mathrm{4}\:\mathrm{sin}\:\frac{\pi}{\mathrm{3}} \\ $$
Commented byTANMAY PANACEA last updated on 04/Oct/20
$${solved}\:{but}\:{could}\:{not}\:{upload}\:{image} \\ $$
Answered by TANMAY PANACEA last updated on 04/Oct/20
Commented byabdullahquwatan last updated on 05/Oct/20
$$\mathrm{thank}\:\mathrm{you}\:\mathrm{sir} \\ $$