Помогите срооочнооо люди умоляю 1. log0,5log381= 2. log4sin6= 3. log183+log186= 4. log5250−log52= 5. log√21024= 6. 491+log72= 7. log216−log864= 8. log3log28−8log82= 9. (log715+log74−log76)∙log107=