Integration Techniques

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The integral ∫sec²(x) dx equals

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1. **Anti-derivative Logic**: Recall the standard derivative formula $\frac{d}{dx}(	an x) = \sec^2 x$.
2. **Integration Principle**: Since integration is the antiderivative, $\int \sec^2 x \, dx$ must be $	an x$ plus a constant.
3. **Result**: $\int \sec^2 x \, dx = 	an x + C$.

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