Easy10pts-- Could you provide the answers of these four logs

http://www.flickr.com/photos/80147355@N0…

a = 1/2
b = 2
c = 6
d = 1/6

a)

log[base 16] (4)

= log [base 4^2] (4)

= 1/2 log[base 4] (4)

= 1/2

b)

log[base 4] (16)

= log[base 4] (4)^2

= 2 log[base 4] (4)

= 2

c)

log[base 2](64)

= log[base 2](2)^6
= 6 log[base 2 ] (2)
= 6

d)

log[base 64] (2)

= log [base 2^6] (2)

= 1/6 log[base 2](2)
= 1/6