यदि (AB + B)T = BTX है, तो X किसके बराबर है? 

  1. AT
  2. AT + I
  3. BT + I
  4. BT
  5. I

Answer (Detailed Solution Below)

Option 2 : AT + I
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Rajasthan RSEB JEN (RVUNL) Electrical - Mini Mock Test
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Detailed Solution

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संकल्पना:

एक योग का पक्षांतर: दो आव्यूहों के योग का पक्षांतर उनके पक्षांतरों के योग के समकक्ष होता है: (A + B)T = AT + BT

एक गुणनफल का पक्षांतर: दो आव्यूहों के गुणनफल का पक्षांतर विपरीत क्रम में उनके पक्षांतरों के गुणनफल के समकक्ष है: (AB)T = BT AT

गणना:

दिया गया है: (AB + B)T = BTX

⇒ (AB + B)T 

= (AB)T + BT

= BTAT + BTI

= BT (AT + I) = BT X

∴ X = (AT + I)

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