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On integers, (a*b=a+b-1). Which will be the identity element?पूर्णांकों पर (a*b=a+b-1) है। इस संक्रिया का तत्समक अवयव कौन सा होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (1)(1)
Step 1: Put (a*e=a). Step 2: (a+e-1=a\Rightarrow e=1). Also (e*a=e+a-1=a). Step 3: In shifted addition, balance the constant term to find identity.चरण 1: (a*e=a) रखें। चरण 2: (a+e-1=a\Rightarrow e=1)। (e*a=e+a-1=a) भी सही है। चरण 3: बदली हुई जोड़ संक्रिया में स्थिर संख्या को संतुलित करें।
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