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Find the equation of the tangent to the graph of y = e^(- |x|) at the point where it intersects the vertical line x = 1.

1. y + 1 = 1
2. y + x = 1
3. y + x = e
4. None of these

Correct answer: None of these

Solution

The tangent line at the point where x = 1 must be calculated using the derivative of the function at that point. The correct equation does not match any of the provided options, confirming that 'None of these' is the right choice.

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