If Ā=2i + , B = 39-k and C = 61 - 2k, then value of A-2B+3C would be a) 201 +5+46 b) 201 - 5) - 4 c) 41+5j + 20 d)
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Answered by
1
Answer:
20i-5j-4k
Explanation:
A-2B+C
=2i+j - 2(3j-k) +3(6i-2k)
=2i+j-6j+2k+18i-6k
=20i-5j-4k
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