## FoolForMath Fool's problem of the day, If in a $$\triangle ABC$$, $$\sin A, \sin B, \sin C$$ are in arithmetic progression, then prove that the altitudes are in Harmonic progression. Good luck! one year ago one year ago

1. satellite73

repeat or did someone else ask this here before?

2. FoolForMath

I don't remember seeing or asking it before .

3. satellite73

i saw it here, so someone else must have asked it

4. satellite73

i remember doing it as well

5. FoolForMath

Haha, that's possible.