If , what is ?

Answer and explanation

Correct answer: B. 34

  1. Step 1: Use term-by-term differentiation on .
  2. Step 2: Differentiating each term produces the first derivative .
  3. Step 3: Substitute into and evaluate: .
Answer
34.
Why not the others: 20 is an underestimation calculation miscalculation; 68 is an overestimation calculation miscalculation; 43 is an overestimation calculation miscalculation.

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