## FoolForMath 2 years ago 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!

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.