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asked May 29 at 8:22

Đào Thanh Oai

1.8k
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Is the formua known? and can we generalized for higher dimentions?

In this con figuration as follows, we have a nice formula:

$$cos(\varphi)=\frac{OF.OE+OB.OC}{OF.OB+OE.OC}$$

Is the formua known? and can we generalized for higher dimentions?

mg.metric-geometry euclidean-geometry plane-geometry

asked May 29 at 8:22

Đào Thanh Oai

1.8k
11
37