a का मान ज्ञात कीजिये यदि सदिश और सदिश समानांतर सदिश हैं।

  1. 6
  2. 9
  3. -6
  4. 2

Answer (Detailed Solution Below)

Option 3 : -6
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Detailed Solution

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अवधारणा:

  • समानांतर सदिश के लिए शर्त: यदि दो दिए गये सदिश  and  समानांतर सदिश हैं तो

गणना

दिया गया है: दो सदिश  और  हैं

यदि ये दोनों सदिश एक दूसरे के समानांतर हैं, तो

a = - 6

  • तो सही उत्तर विकल्प 3 है।

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