If the straight lines

MATHEMATICS · Subjective · CBSE · Mathematics · Three-Dimensional Geometry · Three-Dimensional Geometry

Problem

If the straight lines x=−1+sx = -1 + s , y=3−λs,z=1+λs and x=t2,y=1+t,z=2−t, withy = 3 - \lambda s, z = 1 + \lambda s \text{ and } x = \frac{t}{2}, y = 1 + t, z = 2 - t, \text{ with} parameters ss and tt , respectively, are coplanar, then find λ\lambda .

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