alleryऑपरेशन a # b = a² − b दिल्लें आसा, आनी x # 3 = 13. सकारात्मक x सोदून काडात.
A5
B4
C3
D6
Answer & Solution
Correct answer: B. 4
x² − 3 = 13 हातूंत x² = 16 मेळटा, देखून x = 4 मेळटा.
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