Question

if log base 10×7=a,
then, log1o (1/70) is equal
to​

Answer 1

Answer:

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Step-by-step explanation:

log10 7 = a, then log10 1 is equal to:

70

[A].

- (1 + a) @

[B]. (1 + a)-1

[C].

a

10

[D].

1

10a

Answer: Option A

Explanation:

log10 1

70

= log10 1 - log10 70

= - log10 (7 x 10)

= - (log10 7 + log10 10)

= - (a + 1).