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CSCA MathematicsChapter 2: Functions, Derivatives & SequencesIntermediate

Exponential, Logarithmic & Trigonometric Functions

基本初等函数:指数、对数与三角函数 · Node 2.2

Laws of exponents, logarithm identities, change-of-base, and fundamental trigonometric identities.

Chapter Weight: 35% of official examination
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Core Mathematical Axiom

Formula Proof & Traps
ax⋅ay=ax+y,loga​(xy)=loga​x+loga​y,sin2θ+cos2θ=1
CSCA Exam Trap Alert

Forgetting to enforce positive argument constraints (x > 0) when solving logarithmic equations.

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