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1/³log6 + 1/²log6 = 6log3 + 6log2
= 6log 3.2
= 6log6
= 1
nomer 2
²log∛64/16 = ²log 4/16
= ²log 1/4
= ²log 4^(-1) ~~> (menyederhanakan sampai sini boleh)
= ²log 2^(-2)
= -2.²log2
= -2
nomer 3
㏒ x - ㏒ (x - 3)² = log x - {2. log (x-3)}
= log x - {2. log x - log 3}
= log x - 2. log x + log 3
= - log x + log 3
= log 3 - log x
= log 3/x
yang nomer 3 silahkan diperiksa kembali..
semoga bermanfaat :)