Aptitude - Logarithm - Discussion

Discussion Forum : Logarithm - General Questions (Q.No. 1)

Logarithm

Which of the following statements is not correct?

log₁₀ 10 = 1

log (2 + 3) = log (2 x 3)

log₁₀ 1 = 0

log (1 + 2 + 3) = log 1 + log 2 + log 3

Answer: Option

Explanation:

(a) Since log_a a = 1, so log₁₀ 10 = 1.

(b) log (2 + 3) = log 5 and log (2 x 3) = log 6 = log 2 + log 3

log (2 + 3) log (2 x 3)

(d) log (1 + 2 + 3) = log 6 = log (1 x 2 x 3) = log 1 + log 2 + log 3.

So, (b) is incorrect.

Discussion:

37 comments Page 4 of 4.

Shivam Ghorpade said: 6 years ago

Thanks all for explaining.

(1)

Keerthana said: 7 years ago

Thanks all for explaining.

Kity said: 7 years ago

How, Please explain this.

K.manohar reddy said: 1 decade ago

Its absolutely correct.

Tendai said: 1 decade ago

What about 243 base 9?

Shashi said: 10 years ago

Its awesome.

Begum said: 1 decade ago

Its great.

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