आव्यूह 

A =  का योगात्मक प्रतिलोम ज्ञात कीजिए। 

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Bihar STET Paper I: Mathematics (Held In 2019 - Shift 1)
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  1. A = 
  2. −A = 
  3. 2A = 
  4. इनमें से कोई नहीं

Answer (Detailed Solution Below)

Option 2 : −A = 
Free
Bihar STET Paper 1 Mathematics Full Test 1
150 Qs. 150 Marks 150 Mins

Detailed Solution

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प्रयुक्त अवधारणा:

2 × 2 क्रम के आव्यूह  का निर्धारक =   

गणना:

आव्यूह A का समायोजन =  

आव्यूह A का योगात्मक प्रतिलोम = -  = 

अतः, इनमें से 2 सही  है।

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