2 ways: d/dx (x cscx)/(3-cscx)
5 years ago in #steemit-education by si118yt118si (61)
$2.42
- Past Payouts $2.42, 0.00 TRX
- - Author $1.22, 0.00 TRX
- - Curators $1.20, 0.00 TRX