If a vector (21+3j+8k) is perpendicular to the
vector (4j-4 i+ak), then the value of a is :
(A)-1
(B) 1/2
(C)-1/2
(D) 1
give explanation, step by step
Answers
Answered by
2
Answer:
if perpendicular dot product is zero
-8i+8ak=o
a=8/8
a=1
Answered by
1
Answer:
1/2
Explanation:
no explanation
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