cos−1(3π+sec−1(−2))=

As we know thatsec−1(−2)=32π∴cos(3π+sec−1(−2))=cos(3π+32π)=cosπ=−1

Get 2 FREE Instant-Explanations on Filo with code FILOAPP

cos^{-1}({}{3}+sec^{-1}(-2))=

Question

$co s^{- 1} (\frac{π}{3} + se c^{- 1} (- 2))$ =

-1

None of these

Views: 680 students

Found 5 tutors discussing this question

Levi Discussed

co s^{- 1} (\frac{π}{3} + se c^{- 1} (- 2))

8 mins ago

Discuss this question LIVE

8 mins ago

As we know that

sec^{- 1} (- 2) = \frac{2 π}{3}

∴ cos (\frac{π}{3} + sec^{- 1} (- 2)) = cos (\frac{π}{3} + \frac{2 π}{3}) = cos π = - 1

Was this solution helpful?

150

Report

One destination to cover all your homework and assignment needs

Learn Practice Revision Succeed

Instant 1:1 help, 24x7

60, 000+ Expert tutors

Textbook solutions

Big idea maths, McGraw-Hill Education etc

Essay review

Get expert feedback on your essay

Schedule classes

High dosage tutoring from Dedicated 3 experts

Trusted by 4 million+ students

Stuck on the question or explanation?

Connect with our maths tutors online and get step by step solution of this question.

231 students are taking LIVE classes