alleryजर a $ b = a² − b² दिले असेल, तर 7 $ 5 बरोबर किती?
A35
B4
C74
D24
Answer & Solution
Correct answer: D. 24
वर्ग केल्यास 49 आणि 25 मिळतात आणि त्यांमधील फरक 24 आहे.
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