Which of the following when simplified, ...

Which of the following when simplified, reduces to unity?

A

`log_(10)5. log_(10) 20+ log_(10)^(2)2`

B

`(2 log 2+ log 3)/(log 48 - log4)`

C

`-log_(5)log_(3) sqrt(root5(9))`

D

`(1)/(6) log_((sqrt(3))/(2))((64)/(27))`

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The correct Answer is:

A, B, C, D

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