Question
Download Solution PDFIf x is a real quantity, what is the minimum value of (25 cos2 x + 9 sec2 x)?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
(25 cos2 x + 9 sec2 x)
Formula used:
Minimum value of acos2x + bsec2x = 2√ab
Calculation:
According to the question:
Minimum value of acos2x + bsec2x = 2√ab
⇒ 2√(25 × 9)
⇒ (2 × 5 × 3)
⇒ 30
∴ The required value is 30.
Last updated on Jul 9, 2025
-> The SSC CGL Notification 2025 for the Combined Graduate Level Examination has been officially released on the SSC's new portal – www.ssc.gov.in.
-> Bihar Police Admit Card 2025 Out at csbc.bihar.gov.in
-> This year, the Staff Selection Commission (SSC) has announced approximately 14,582 vacancies for various Group B and C posts across government departments.
-> The SSC CGL Tier 1 exam is scheduled to take place from 13th to 30th August 2025.
-> Aspirants should visit ssc.gov.in 2025 regularly for updates and ensure timely submission of the CGL exam form.
-> Candidates can refer to the CGL syllabus for a better understanding of the exam structure and pattern.
-> The CGL Eligibility is a bachelor’s degree in any discipline.
-> Candidates selected through the SSC CGL exam will receive an attractive salary. Learn more about the SSC CGL Salary Structure.
-> Attempt SSC CGL Free English Mock Test and SSC CGL Current Affairs Mock Test.
-> The AP DSC Answer Key 2025 has been released on its official website.
-> The UP ECCE Educator 2025 Notification has been released for 8800 Posts.