λ का मूल्य क्या है जिसके लिए सदिश  और लंबवत हैं?

  1. 21
  2. -18
  3. -22
  4. 22

Answer (Detailed Solution Below)

Option 3 : -22
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अवधारणा:

यदि सदिश  लंबवत हैं तो 

 

गणना:

दिया हुआ:  and  लंबवत हैं

माना कि  और 

हम जानते हैं कि यदि सदिश  लंबवत हैं तो 

⇒ -2 - 20 - λ = 0 

⇒ -22 - λ = 0 

∴ λ = -22

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-> The Indian Army has released the Exam Date for Indian Army Havildar SAC (Surveyor Automated Cartographer).

->The Exam will be held on 9th July 2025.

-> Interested candidates had applied online from 13th March to 25th April 2025.

-> Candidates within the age of 25 years having specific education qualifications are eligible to apply for the exam.

-> The candidates must go through the Indian Army Havildar SAC Eligibility Criteria to know about the required qualification in detail. 

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