Question
Download Solution PDFযদি \(\cos ^2 θ=\frac{3}{4}\) হয়, যেখানে θ একটি সূক্ষ্মকোণ, তাহলে sin (θ + 30°) এর মান হল:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
Cos2 θ = 3/4
অনুসৃত সূত্র:
Cos 30° = Sin 60° = √3/2
গণনা:
Cos2 θ = 3/4
⇒ cos θ = √(3/4) = √3/2
⇒ cos θ = cos 30°
⇒ θ = 30°
sin (θ + 30°) = sin (30° + 30°)
⇒ sin 60° = √3/2
∴ সঠিক উত্তর হল √3/2
Last updated on Jun 13, 2025
-> The SSC CGL Notification 2025 has been released on 9th June 2025 on the official website at ssc.gov.in.
-> The SSC CGL exam registration process is now open and will continue till 4th July 2025, so candidates must fill out the SSC CGL Application Form 2025 before the deadline.
-> 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.
-> Candidates should also use the SSC CGL previous year papers for a good revision.