Three Dimensional Geometry

Section: Mathematics

Question : 20 of 35

Marks: +1, -0

From a point P(λ,λ,λ),perpendicular PQ and PR are drawn respectively on the lines y=x,z=1 and y=−x,z=−1. If P is such that ∠QPR is a right angle, then the possible value(s) of λ is(are)

[JEE Adv 2014 P1]

√2
1
−1
√−2

Validate

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