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Angle Between Two Lines
If two lines have direction cosines:
$$l_1,m_1,n_1$$
and:
$$l_2,m_2,n_2$$
then the angle $$\theta$$ between them satisfies:
$$\cos\theta=l_1l_2+m_1m_2+n_1n_2$$
Usage
- Used to calculate the angle between two lines.
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Angle Between Two Lines
If two lines have direction cosines:
$$l_1,m_1,n_1$$
and:
$$l_2,m_2,n_2$$
then the angle $$\theta$$ between them satisfies:
$$\cos\theta=l_1l_2+m_1m_2+n_1n_2$$
Usage
- Used to calculate the angle between two lines.
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