alleryક્રિયા a # b = a² − b આપેલ છે, અને x # 3 = 13 છે. ધન x શોધો.
A5
B4
C3
D6
Answer & Solution
Correct answer: B. 4
x² − 3 = 13 પરથી x² = 16 મળે છે, તેથી x = 4.
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