If X₃ = T₄ (X₄,d₄) = X₄ − 2d₄ and R₄(x₄,d₄)

question 21

Multiple Choice

If x₃ = t₄ (x₄,d₄) = x₄ − 2d₄ and r₄(x₄,d₄) = 16d₄ the state variable is

• A) t
• B) x
• C) r
• D) d

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