If 2A + B = 0, then | A / | B | - 1 | + | a | / B-2 |, is equal to (). A, 2b, 3C, 4D, | Math enthusiast | Mathematical art

If 2A + B = 0, then | A / | B | - 1 | + | a | / B-2 |, is equal to (). A, 2b, 3C, 4D,

It's all wrong. It should be B
From 2A + B = 0, we can see that a / b = - 1 / 2, so a / | B | and | a | B must be one positive and one negative
The original formula = | - 1 / 2-1 | + | - 1 / 2-2 |, or | - 1 / 2-1 | + | - 1 / 2-2 | = 3

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