ftftdtdtd
ftftdtdtd
18-03-2018
Mathematics
contestada
Evaluate a) log^3 81 b) log^25 5
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CastleRook
CastleRook
27-03-2018
We evaluate the logs as follows:
a]
log_3 81
=log_3 (3^4)
=4 log_3 3
=4×1
=4
b]
log_5 25
=log_5 5²
=2log_5 5
=2×1
=2
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