Questions tagged [3d]

For things related to 3 dimensions. For geometry of 3-dimensional solids, please use instead (solid-geometry). For non-planar geometry, but otherwise agnostic of dimensions, perhaps (euclidean-geometry) or (analytic-geometry) should also be considered.

This tag is for things related to 3-dimensions. For geometry of 3-dimensional solids, please use instead . For non-planar geometry, but otherwise agnostic of dimensions, perhaps or should also be considered.

Learn more about 3-dimensional space here.

3724 questions
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Intersection of 3D lines of form $ax+by+cz+d=0=a_1x+b_1y+c_1z+d_1$

If the line $\frac{x}{1}=\frac{y}{2}=\frac{y}{3}$ intersects line $3β^2x + 3(1 – 2α)y + z = 3 = -\frac{1}{2}(6α^2x + 3(1 – 2β)y + 2z)$ Then value of $\alpha+\beta=$
1 2 3
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