\(\frac{2.46\times 2.46-1.46\times 1.46}{2.46-1.46}\) என்றதைச் சுருக்குக மற்றும் மிகவும் பொருத்தமான பின்னத்தைக் கண்டறியவும்.

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RRB Technician Grade III Official Paper (Held On: 30 Dec, 2024 Shift 1)
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  1. \(\frac{392}{10}\)
  2. \(\frac{392}{100}\)
  3. \(\frac{392}{10000}\)
  4. \(\frac{392}{1000}\)

Answer (Detailed Solution Below)

Option 2 : \(\frac{392}{100}\)
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Detailed Solution

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கொடுக்கப்பட்டது:

\(\dfrac{(2.46 \times 2.46-1.46 \times 1.46)}{(2.46-1.46)}\)

பயன்படுத்தப்பட்ட சூத்திரம்:

\((a^2 - b^2) = (a + b)(a - b)\)

கணக்கீடு:

\(\dfrac{(2.46 + 1.46)(2.46 - 1.46)}{(2.46-1.46)}\)

\(\dfrac{(2.46^2 - 1.46^2)}{(2.46-1.46)}\)

\((2.46 + 1.46)\)

⇒ 3.92

\(\dfrac{392}{100}\)

∴ சரியான விடை விருப்பம் (2).

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