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      Question

      Find the maximum value of (20sin A + 15cos

      A).
      A 25 Correct Answer Incorrect Answer
      B 40 Correct Answer Incorrect Answer
      C 50 Correct Answer Incorrect Answer
      D 52 Correct Answer Incorrect Answer

      Solution

      Maximum value of (asin P + bcos P) = √(a² + b²)
      Here, 'a' = 20 and 'b' = 15
      Therefore, required value = √(20² + 15²) = √(400 + 225) = √625 = 25

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