If Logay
= Loga20 + Loga7 ; find y.
solution
Logay
= Loga20 + Loga7
Logay
= Loga(20x 7) [since
Logam + Logan = Loga(m x n)]
Hence y = 140
[since Loga cancels out]
TRY THIS..............................
NECTA 1997 QN
13a
If Logax
= Loga5 + Loga3 ; find x.
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