If ∫₀¹ f(x) dx = 2 and ∫₀² f(x) dx = 5, then ∫₁² f(x) dx is:
If ∫₀¹ f(x) dx = 2 and ∫₀² f(x) dx = 5, then ∫₁² f(x) dx is:
- A. 3
- B. 7
- C. 10
- D. −3
Answer: A) 3
Explanation: By additivity: ∫₀² = ∫₀¹ + ∫₁² → 5 = 2 + ∫₁² → ∫₁² = 3.
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