Find the principal value of cot−1(3−1)

Let y=cot−1(3−1)3−1=coty⇒ coty =3−1=−cot(3π)coty=cot(π−3π)cot y=cot(32π)∴ y=22πϵ 32πϵ (0;π)

Get 2 FREE Instant-Explanations on Filo with code FILOAPP

Find the principal value of ^{-1} ( {-1}{{3}} )

Question

Find the principal value of $cot^{- 1} (\frac{- 1}{3})$

Views: 697 students

Found 6 tutors discussing this question

Amelia Discussed

Find the principal value of

cot^{- 1} (\frac{- 1}{3})

7 mins ago

Discuss this question LIVE

7 mins ago

Let

y = cot^{- 1} (\frac{- 1}{3})

\frac{- 1}{3} = cot y \Rightarrow cot y = \frac{- 1}{3} = - cot (\frac{π}{3})

cot y = cot (π - \frac{π}{3})

cot y = cot (\frac{2 π}{3})

∴ y = \frac{2 π}{2} ϵ \frac{2 π}{3} ϵ (0; π)

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

Question Text	Find the principal value of $cot^{- 1} (\frac{- 1}{3})$
Answer Type	Text solution:1
Upvotes	150