Question Video: Converting an Equation from Exponential to Logarithmic Form | Nagwa Question Video: Converting an Equation from Exponential to Logarithmic Form | Nagwa

# Question Video: Converting an Equation from Exponential to Logarithmic Form Mathematics • Second Year of Secondary School

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Express (0.16)^(1/2) = 0.4 in its equivalent logarithmic form.

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### Video Transcript

Express 0.16 to the power of one-half equals 0.4 in its equivalent logarithmic form.

In order to answer this question, we recall that if 𝑎 to the power of 𝑏 is equal to 𝑥, then log base 𝑎 of 𝑥 is equal to 𝑏. Our base value 𝑎 is equal to 0.16. The exponent or power 𝑏 is equal to one-half. And our value for 𝑥 is equal to 0.4. This means that in logarithmic form log to the base 0.16 of 0.4 is equal to one-half. We can convert any expression in exponential form to logarithmic form or vice versa using this rule.

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