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On (\mathbb{R}), (a*b=a+b-2). What is the inverse of (-3)?समुच्चय (\mathbb{R}) पर (a*b=a+b-2) है। (-3) का प्रतिलोम क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (7)(7)
Step 1: The identity is (2). Step 2: From (-3*x=2), (-3+x-2=2), so (x=7). Step 3: With negative numbers, write every term clearly.चरण 1: इस संक्रिया का तत्समक (2) है। चरण 2: (-3*x=2) से (-3+x-2=2), अतः (x=7)। चरण 3: ऋणात्मक संख्या के साथ समीकरण बनाते समय हर पद साफ लिखें।
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