Math Skills
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🧮 Functions and equations · AddMath

Solve aˣ = b with logs (exact and 3 s.f.)

💡 The ideaTake logs of both sides so the power comes down: aˣ = N gives x lg a = lg N. With e use ln, and with ln(…) = k write the bracket as eᵏ. Leave ln or e in the answer when it asks for an exact form.
📖 Worked example · same type, different numbers
    Answer:
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