समुच्चय \(\mathbb{R}\) पर \(a*b=a+\mu b\) है। यह संक्रिया साहचर्य होने के लिए \(\mu\) के कौन-से मान संभव हैं?

On \(\mathbb{R}\), \(a*b=a+\mu b\). Which values of \(\mu\) make this operation associative?

Explanation opens after your attempt
Correct Answer

A. \(\mu=0\) या \(\mu=1\)\(\mu=0\) or \(\mu=1\)

Step 1

Concept

((a*b)*c=\(a+\mu b\)+\mu c=a+\mu b+\mu c).

Step 2

Why this answer is correct

(a*(b*c)=a+\mu\(b+\mu c\)=a+\mu b+\mu-2c). Equality needs \(\mu c=\mu^2c\) for every (c), so \(\mu=\mu^2\).

Step 3

Exam Tip

Thus \(\mu=0\) or \(\mu=1\). चरण 1: ((a*b)*c=\(a+\mu b\)+\mu c=a+\mu b+\mu c)। चरण 2: (a*(b*c)=a+\mu\(b+\mu c\)=a+\mu b+\mu-2c)। बराबरी के लिए \(\mu c=\mu^2c\) हर (c) पर चाहिए, इसलिए \(\mu=\mu^2\)। चरण 3: अतः \(\mu=0\) या \(\mu=1\)।

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Mathematics Answer, Explanation and Revision Hints

समुच्चय \(\mathbb{R}\) पर \(a*b=a+\mu b\) है। यह संक्रिया साहचर्य होने के लिए \(\mu\) के कौन-से मान संभव हैं? / On \(\mathbb{R}\), \(a*b=a+\mu b\). Which values of \(\mu\) make this operation associative?

Correct Answer: A. \(\mu=0\) या \(\mu=1\) / \(\mu=0\) or \(\mu=1\). Explanation: चरण 1: ((a*b)*c=\(a+\mu b\)+\mu c=a+\mu b+\mu c)। चरण 2: (a*(b*c)=a+\mu\(b+\mu c\)=a+\mu b+\mu-2c)। बराबरी के लिए \(\mu c=\mu^2c\) हर (c) पर चाहिए, इसलिए \(\mu=\mu^2\)। चरण 3: अतः \(\mu=0\) या \(\mu=1\)। / Step 1: ((a*b)*c=\(a+\mu b\)+\mu c=a+\mu b+\mu c). Step 2: (a*(b*c)=a+\mu\(b+\mu c\)=a+\mu b+\mu-2c). Equality needs \(\mu c=\mu^2c\) for every (c), so \(\mu=\mu^2\). Step 3: Thus \(\mu=0\) or \(\mu=1\).

Which concept should I revise for this Mathematics MCQ?

((a*b)*c=\(a+\mu b\)+\mu c=a+\mu b+\mu c).

What exam hint can help solve this Mathematics question?

Thus \(\mu=0\) or \(\mu=1\). चरण 1: ((a*b)*c=\(a+\mu b\)+\mu c=a+\mu b+\mu c)। चरण 2: (a*(b*c)=a+\mu\(b+\mu c\)=a+\mu b+\mu-2c)। बराबरी के लिए \(\mu c=\mu^2c\) हर (c) पर चाहिए, इसलिए \(\mu=\mu^2\)। चरण 3: अतः \(\mu=0\) या \(\mu=1\)।