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JAMB - Mathematics (2003 - No. 23)

Find the slope of the curve y = 2x\(^2\) + 5x - 3 at (1, 4).
4
6
7
9

解释

y = 2x\(^2\) + 5x - 3
dy/dx = 4x + 5
= 4 + 5
= 9

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