TRANSCRIBE THE FOLLOWIMG TEXT IN DIGITAL FORMAT
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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TRANSCRIBE THE FOLLOWIMG TEXT IN DIGITAL FORMAT
Transcribed Image Text:Here
the
2² = i +j-k
If
angle
Cos 0 =
Here
a d
เสี
121 =
lal
or
d. d =
given vectors
and
c = i + j - k
d' = -i -25 + 3h
CUSO
between
"₁ 0 =
Solution:
=
c and a be
√²+1²+(-1)²
= √(-1) + (-2) + (3)²
d' = -² -2j + 3k.
=-1-2-3
( i + j -k). (-i-25 + 3k)
6
(√3)(√14)
are
(1)(-1) + (1) (-2) + (-1)(3)
-6
=
6
cos" (J22)
42
=
the
0
157. 79°
Since angle between I and I' is 157.79⁰
not orthogenal.
so the vectors I and I'
them
√₁+4+9 = √14.
are
angle
Not orthogonal.
157.79°
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