If a vector 2i + 3j + 8k is perpendicular to the vector 4i - 4j + ɑk , then
[tex] \large \bold \pink{Find \: the \: value \: of \: ɑ.}[/tex]
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[tex] \large \bold \pink{Find \: the \: value \: of \: ɑ.}[/tex]
Need Quality answers and full solution.
No spamming or 10 spamming answers will be reported.
Thanks.
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Step-by-step explanation:
refer the above image mate
Answer A
=2i+3j+8k
B
=4i−4j+ak
Since
A
and
B
are perpendicular
A
.
B
=0
(2i+3j+8k)(4i−4j+ak)
8−12+8a=0
a=
8
4
=
2
1