或者是1/2，k，x的平方。
Things sort of cancel out here. Rearrange 4x squared divided by n squared minus x squared.
有些量抵消了,整理一下4x平方除以n平方减x平方。
For example, the moment of inertia about the z-axis is dV the triple integral of x squared plus y squared density dV.
例如，关于z轴的转动惯量,是∫∫∫δ
n We're interested in x divided by n. So let's divide both the top and the bottom by n squared.
我们感兴趣的是x除以,所以同时把分子分母除以n平方。
X ray intensity was linearly related to the distance squared in the measured disance. The gradient was -2.04 confirming the validity of "disance inverse square law" in this experiment.
线强度与距离平方在测试距离内呈线性关系，倾斜值为-2．04，证明本实验中的“距离反平方定律”成立。
X ray intensity was linearly related to the distance squared in the measured disance. The gradient was -2.04 confirming the validity of "disance inverse square law" in this experiment.
线强度与距离平方在测试距离内呈线性关系，倾斜值为-2．04，证明本实验中的“距离反平方定律”成立。
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