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Second derivative test - Wikipedia, the free encyclopedia
In calculus, a branch of mathematics, the second derivative test is a criterion often useful for determining whether a given stationary point of a function is a local maximum or a local minimum usin...
en.wikipedia.org/wiki/Second_derivative_test |
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Use first and second derivative test to find the extrema ... We can find the local maximum and absolute minimum by, first, computing the first derivative and equating to zero so we identify precisely the critical points, then we compute the second derivative and check the sign.
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I would encourage you to use this method quite a lot because it gets you used to the idea of analysing what is happening to a function. ... There is another, more routine, method known as the Second Derivative Test. I will state the test, show you a difficulty and then try to explain where the test comes from.
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Definition: If f'(x) is increasing then the function is concave up and if f'(x) is decreasing then the function is concave down. To determine whether the derivative is increasing, we take the second derivative. ... IV. The Second Derivative Test ... 3) If f''(x) = 0 then use the first derivative test.
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To find points of inflection, you set the second derivative of the particular graph equal to zero. Find the values of x for which the second derivative is equal to zero and where it is undefined. ... THEOREM 3.9 Second Derivative Test ... If f''(c) =0 the test fails. In such cases, you can use the First Derivative Test...
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Three possible situations could occur that would rule out the use of the Second Derivative Test for Local Extrema: ... Under any of these conditions, the First Derivative Test would have to be used to determine any local extrema. Another drawback to the Second Derivative Test is that for some functions,
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This "The Second Derivative Test" video requires the latest version of Adobe Flash Player. Download Flash; ... Using the comparison test - Professor Edward Burger explains how to use the direct comparison test in this video from Thinkwell's online Calculus series.
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