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a $ b = a² − b² எனக் கொடுக்கப்பட்டால், 7 $ 5-ன் மதிப்பு என்ன?

A35
B4
C74
D24
Answer & Solution
Correct answer: D. 24
வர்க்கப்படுத்தினால் 49 மற்றும் 25 கிடைக்கும், அவற்றின் வித்தியாசம் 24 ஆகும்.
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