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If (a*b=a+2b), choose the correct statement using (1*2) and (2*1).यदि (a*b=a+2b) है, तो (1*2) और (2*1) के आधार पर सही कथन चुनिए।
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (1*2\neq 2*1)(1*2\neq 2*1)
Step 1: (1*2=1+2(2)=5). Step 2: (2*1=2+2(1)=4), so they are not equal. Step 3: To test commutativity, calculate in both orders.चरण 1: (1*2=1+2(2)=5)। चरण 2: (2*1=2+2(1)=4), इसलिए दोनों बराबर नहीं हैं। चरण 3: क्रमविनिमेयता जाँचने के लिए उलटे क्रम में भी मान निकालें।
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