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Byju's Answer
Standard XII
Mathematics
Distance between Two Parallel Planes
What is the v...
Question
What is the value of
λ
for which the lines
x
−
1
2
=
y
−
3
5
=
z
−
1
λ
and
x
−
2
3
=
y
+
1
−
2
=
z
2
are perpendicular to each other?
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Solution
The given lines are perpendicular to each other. If the sum of the products of their direction ratios is zero.
That is:
2
×
3
+
5
×
−
2
+
λ
×
2
=
0
λ
=
2
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1
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