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Express “ln va “ as a product

Express “ln √a “ as a product

2 Answers by Expert Tutors

Imtiazur S. | Tutor with masters degree and experience teaching CalculusTutor with masters degree and experience...
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Logarithm of a number raised to a power can be expressed as the power * logarithm of the number

Expressed Algebraically, log(xa) = a * log(x)

ln is natural logarithm which is a logarithm to base e (natural number)

The given expression ln(√a) can be expressed as ln(a0.5)

This can be expressed as a product as 0.5 * ln(a)
Luis A. | Physics / Advance Math / Spanish TutorPhysics / Advance Math / Spanish Tutor
5.0 5.0 (3 lesson ratings) (3)
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Express “ln va “ as a product
Solution:
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from x^a/b = r(b) [x^a], where r = root, and r(b) = root of index b; a = exponent
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from our example: va = r(2) [a] = a^1/2
and using logarims law: Ln [a^b/c] = (b/c) * ln [a], then
ln va = ln ( a^1/2) = (1/2)*ln [a] = ln[a] / 2