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Solve the Exponential Equation by Taking a Logarithm of Both 7a=157 ^ { a } = 15

Question 107

Multiple Choice

Solve the exponential equation by taking a logarithm of both sides. 7a=157 ^ { a } = 15


A) {ln⁡157}\left\{ \ln \frac { 15 } { 7 } \right\}
B) {ln⁡715}\left\{ \ln \frac { 7 } { 15 } \right\}
C) {ln⁡15ln⁡7}\left\{ \frac { \ln 15 } { \ln 7 } \right\}
D) {ln⁡7ln⁡15}\left\{ \frac { \ln 7 } { \ln 15 } \right\}

Correct Answer:

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