Mathematics Answer, Explanation and Revision Hints
वास्तविक संख्याओं पर (a*b=a+b+2ab) है। (1) का प्रतिलोम क्या है? / On real numbers, (a*b=a+b+2ab) is defined. What is the inverse of (1)?
Correct Answer: C. \(-\frac{1}{3}\). Explanation: चरण 1: इस संक्रिया का तत्समक (0) है। चरण 2: (1*b=0) रखने पर (1+b+2b=0) मिलता है। चरण 3: (1+3b=0), इसलिए \(b=-\frac{1}{3}\)। / Step 1: The identity for this operation is (0). Step 2: Put (1*b=0), so (1+b+2b=0). Step 3: (1+3b=0), hence \(b=-\frac{1}{3}\).
Why is option C correct in this Mathematics MCQ?
(1*b=0) रखने पर (1+b+2b=0) मिलता है। / Put (1*b=0), so (1+b+2b=0).
What should I remember for this Mathematics concept?
(1+3b=0), इसलिए \(b=-\frac{1}{3}\)। / (1+3b=0), hence \(b=-\frac{1}{3}\).
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