Question
Download Solution PDFsec2 A + (cosec2 A - 1) - (1 + tan2 A) - cot2 A = ______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
sec2 A + (cosec2 A - 1) - (1 + tan2 A) - cot2 A = __
प्रयुक्त अवधारणा:
पाइथागोरस त्रिकोणमितीय सर्वसमिकाएँ:
cosec2 θ - 1 = cot2 θ
1 + tan2 θ = sec2 θ
गणना:
⇒ sec2 A + (cosec2 A - 1) - (1 + tan2 A) - cot2 A
त्रिकोणमितीय सर्वसमिकाओं के अनुसार मान रखने पर,
⇒ sec2 A + cot2 A - sec2 A - cot2 A = 0
इसलिए, sec2 A + cot2 A - sec2 A - cot2 A का आवश्यक मान 0 है।
अतः सही उत्तर विकल्प (2) है।
Last updated on Jun 30, 2025
-> The RRB Technician Notification 2025 have been released under the CEN Notification - 02/2025.
-> As per the Notice, around 6238 Vacancies is announced for the Technician 2025 Recruitment.
-> The Online Application form for RRB Technician will be open from 28th June 2025 to 28th July 2025.
-> The Pay scale for Railway RRB Technician posts ranges from Rs. 19900 - 29200.
-> Prepare for the exam with RRB Technician Previous Year Papers.
-> Candidates can go through RRB Technician Syllabus and practice for RRB Technician Mock Test.