Find the equation of the tangent to the curve x² + y² = 5 at (−1, 2).

Lagos State University MAT102 2025 past question

1. x − 2y + 4 = 0
2. 2x − y + 4 = 0
3. x − 2y + 5 = 0
4. 2x − y + 5 = 0

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