関連ワード:
if the second derivative is negative what is the concavity if the second derivative is negative is the graph concave down if the second derivative is negative is it concave down if the second derivative is negative is it concave up or down if the second derivative is negative is it.concave up when the second derivative is negative is it concave up or down when the second derivative is negative is it concave down what happens when the second derivative is negative what does it mean when the second derivative is negative is concavity the second derivative
