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Stationary Value, minimum point - Coggle Diagram
Stationary Value
1st derivative test
find gradient of tangent of the 2 closest points right before and right after the stationary point, (E.g. X-0.01 and X+0.01) then draw a table and sketch of tangent.
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2nd derivative test
d2y/dx2
If d2y/dx2<0, point is a maximum point.
If d2y/dx2>0, point is a minimum point.
if d2y/dx2 = 0, the second derivative test is inconclusive, use first derivative test.
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