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Given,
⇒ logx 243 = 5
⇒ 243 = x5
⇒ 35 = x5
⇒ x = 3.
Hence, option 2 is the correct option.
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log(1 × 2 × 3) =
log 5
log 1 × log 2 × log 3
log 1 + log 2 + log 3
log 9
If log5 (8x - 3) = 3, then x =
8
16
32
40