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Question

Let a,b,c be three linearly independent vectors then
[a+2bc 2a+b+c 4ab+5c][a b c] is

A
4
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B
2
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C
0
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D
1
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Solution

The correct option is C 0
[a+2bc2a+b+c4ab+5c]

∣ ∣121211415∣ ∣[abc]

111152214512141[abc]

=(0)[abc]

[a+2bc2a+b+c4ab+5c][abc]=0

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