(10 + √25)(12 – √49) का वर्गमूल है:

  1. 4√3 
  2. 3√3
  3. 5√3
  4. 2√3

Answer (Detailed Solution Below)

Option 3 : 5√3
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Detailed Solution

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संकल्पना:

हम गुणनखंडन विधि का प्रयोग करके √x ज्ञात कर सकते हैं

गणणा:

√[(10 + √25) (12 - √49)]

⇒ √[(10 + 5)(12 – 7)]

⇒ √(15 × 5)

⇒ √(3 × 5 × 5)

⇒ 5√3

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