यदि है, तो |A| का मान क्या है?

  1. sin 2θ 
  2. cos 2θ 
  3. cos2 θ
  4. 1

Answer (Detailed Solution Below)

Option 2 : cos 2θ 
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Army Havildar SAC - Quick Quiz
5 Qs. 10 Marks 6 Mins

Detailed Solution

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संकल्पना:

cos2 θ - sinθ = cos 2θ

गणना:

दिया गया है: A =  

|A| = cos θ × cos θ - sin θ × sin θ

= cos2 θ - sinθ

= cos 2θ

Latest Army Havildar SAC Updates

Last updated on Jul 1, 2025

-> 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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