संक्रिया a # b = a² − b दी गई है, और x # 3 = 13 है। धनात्मक x का मान ज्ञात कीजिए।
A5
B4
C3
D6
Answer & Solution
Correct answer: B. 4
x² − 3 = 13 से x² = 16 प्राप्त होता है, इसलिए x = 4।
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