Mathematics · Determinants
Assertion (A): For the matrix A = [[1, cosθ, 1], [-cosθ, 1, cosθ], [-1, -cosθ, 1]], where θ ∈ [0, 2π], the determinant |A| ∈ [2, 4]. Reason (R): cosθ ∈ [-1, 1], ∀ θ ∈ [0, 2π].
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1Assertion (A) is false, but Reason (R) is true.
- 2Assertion (A) is true, but Reason (R) is false.
- 3Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
- 4Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).✓
Correct answer
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Determinants MCQs →Want more practice questions on Determinants?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Determinants