What is the value of cosec(65° + θ) - sec(25° - θ) + tan220° - cosec270°?

cosec(65° + θ) - sec(25° - θ) + tan220° - cosec270° = sec(25° - θ) - sec(25° - θ) + tan220° - sec220° = tan220° - sec220° = -1

Home

Competitive Exams

Computer & Programming

Other Subjects

Exam Categories

SSC Exams Railway Exams All Exams

Popular Exams

Engineering Subjects

More Engineering

Engineering Core

Computer Fundamentals

Programming

Advanced

Graduation & PG

Resources

Current Affairs Interview Blog

This question belongs to Arithmetic Ability Trigonometry

Trigonometry

?

What is the value of cosec(65° + θ) - sec(25° - θ) + tan²20° - cosec²70°?

A) -1 B) 0 C) 1 D) 2

Answer & Solution

Correct Answer: Option A

cosec(65° + θ) - sec(25° - θ) + tan²20° - cosec²70°
= sec(25° - θ) - sec(25° - θ) + tan²20° - sec²20°
= tan²20° - sec²20°
= -1

Question posted by Examveda

Community

Join the discussion

Login to post a comment or share your explanation.

No comments yet Be the first to discuss this question.

Keep Learning