3. Find the acute angle between the lines. x - 1 3 - y z+5 (a) l1: 3 (b) l1: r = 7 – 2t, y = 4+3t, z = 5t %3D %3D 1 2 I - 1 l2: z+5 l2: x = -1+4s, y = 3+4s, z = 1+s. -2

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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3.
Find the acute angle between the lines.
(a)
x - 1
l1 :
3 - y
z +5
(b) l1: x = 7 – 2t,
y = 4 + 3t,
z = 5t
%3D
1
2
z +5
I - 1
l2 :
y - 3
l2 : x = -1+4s,
y = 3+4s,
z = 1+s.
-2
Transcribed Image Text:3. Find the acute angle between the lines. (a) x - 1 l1 : 3 - y z +5 (b) l1: x = 7 – 2t, y = 4 + 3t, z = 5t %3D 1 2 z +5 I - 1 l2 : y - 3 l2 : x = -1+4s, y = 3+4s, z = 1+s. -2
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