if-180-prove-sin-sin-sin-sin-pi-3-lt-4-sin-pi-3-

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 by TANMAY PANACEA last updated on 04/Oct/20

$${solved}\:{but}\:{could}\:{not}\:{upload}\:{image} \\ $$

Answered by TANMAY PANACEA last updated on 04/Oct/20

Commented by abdullahquwatan last updated on 05/Oct/20

$$\mathrm{thank}\:\mathrm{you}\:\mathrm{sir} \\ $$

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