ahmirsayafi (33)in DTube • 5 years agoRE: Derivatives of Logarithmic Functions: Example on using Log RulesThank you for your help ! Ok I got it Blessingahmirsayafi (33)in DTube • 5 years agoRE: Derivatives of Logarithmic Functions: Example on using Log RulesThank you so much for you share I am new in steem and I don't know how I can post video on steem