Question

if loga 81 = 4 . then the value of 'a' is :

Answer 1

Answer:

a=3

Step-by-step explanation:

logₐ81 = logₐ3⁴

           = 4logₐ3

but logₐ81 =4

So 4logₐ3 = 4

    logₐ3    = 1

    so a =3.