সমাধান
সঠিক উত্তর: Option A
logex1/2 + logex1/3 +logex1/4
= (1/2)logex + (1/3)logex + (1/4)logex
={(1/2) + (1/3) + (1/4)}logex
= ((6 + 4 + 3)/12}logex
= (13/12)logex
= (1/2)logex + (1/3)logex + (1/4)logex
={(1/2) + (1/3) + (1/4)}logex
= ((6 + 4 + 3)/12}logex
= (13/12)logex