यदि  और  तो |AB| = ?

  1. -91
  2. -17
  3. 84
  4. इनमें से कोई नहीं

Answer (Detailed Solution Below)

Option 1 : -91
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Agniveer Navy SSR Full Test - 01
100 Qs. 100 Marks 60 Mins

Detailed Solution

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अवधारणा:

आव्यूहों के गुणनफल का सारणिक आव्यूहों के सारणिकों के गुणनफल के बराबर है।

यानी |AB| = |A| |B|

 

गणना:

दिया हुआ है कि

अब, |AB| = |A| |B| = (2 - 15)(9 - 2) = -91

 

Additional Information :

आव्यूह गुणनफल AB  = = हो जाएगा।

और |AB| = 96 - 187 = -91

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