solving exponential equations
What solving exponential equations means in Mathematics A-Level, as defined for Pearson Edexcel, WJEC.
Definitions of solving exponential equations
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Reference: Pearson Edexcel
The inverse relationship lets you solve equations by taking logs or exponentiating both sides, for example converting e^(2x) = 7 into 2x = ln 7.
Solving an exponential equation such as e^(2x) = 5 requires taking natural logarithms, giving 2x = ln 5.
Topics that use solving exponential equations
- Exponentials and logarithms (Pearson Edexcel A-Level)
- Exponentials and logarithms (AS Unit 1: Pure Mathematics A) (WJEC A-Level)
Related terms
- inverse functions
- laws of logarithms
- ambient temperature baseline
- carrying capacity
- combining logarithms
- Continuous change
- Differentiation of exponential functions
- domain restrictions
Using solving exponential equations in the exam
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