tan3θ⋅tan7θ = 1 என்றால், 7θ குறுங்கோணமாக இருந்தால், cot15θ இன் மதிப்பைக் கண்டறியவும்.

This question was previously asked in
SSC CGL 2022 Tier-I Official Paper (Held On : 12 Dec 2022 Shift 3)
View all SSC CGL Papers >
  1. 1
  2. -1
  3. \(-\sqrt3\)
  4. \(\sqrt3\)

Answer (Detailed Solution Below)

Option 2 : -1
vigyan-express
Free
PYST 1: SSC CGL - General Awareness (Held On : 20 April 2022 Shift 2)
3.6 Lakh Users
25 Questions 50 Marks 10 Mins

Detailed Solution

Download Solution PDF
கொடுக்கப்பட்டது:
tan3θ⋅tan7θ = 1
பயன்படுத்தப்பட்ட கருத்து:
image
 
கணக்கீடு:
 

tan3θ⋅tan7θ = 1

⇒  tan3θ = 1/tan7θ

⇒  tan3θ = cot7θ

⇒  tan3θ = tan(90° - 7θ)

⇒ 3θ = 90° - 7θ

⇒ 10θ = 90°

⇒ θ = 9°

எனவே, cot15θ = cot135° = - tan45°
 
⇒ - 1
 
∴ தேவையான பதில் - 1.
Latest SSC CGL Updates

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. 

Get Free Access Now
Hot Links: teen patti game online teen patti club teen patti 100 bonus teen patti rummy 51 bonus teen patti joy apk