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If the straighat lines x=1+s,y=-3-lamdas...

If the straighat lines `x=1+s,y=-3-lamdas,z=1+lamdas and x=t/2,y=1+t,z=2-t` with parameters s and t respectively, are coplanar, then `lamda` equals (A) `-1/2` (B) `-1` (C) `-2` (D) `0`

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To determine the value of \( \lambda \) for which the given lines are coplanar, we can follow these steps: ### Step 1: Write the equations of the lines in parametric form The first line is given by: \[ x = 1 + s, \quad y = -3 - \lambda s, \quad z = 1 + \lambda s \] This can be rewritten in the form: ...
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