Turn on thread page Beta
    • Thread Starter
    Offline

    3
    ReputationRep:
    Hey guyz,
    I need help in deriving the derivatives and integrals of cosecx,cotx and tanx and their inverses
    Offline

    12
    What have you tried so far?

    Also what can you say that each of those is equal to in terms of sinx and cosx?
    Offline

    20
    ReputationRep:
    you can use the quotient rule to differentiate 1/sinx etc
    • Community Assistant
    • Very Important Poster
    Offline

    20
    ReputationRep:
    Community Assistant
    Very Important Poster
    (Original post by shady2.0)
    Hey guyz,
    I need help in deriving the derivatives and integrals of cosecx,cotx and tanx and their inverses
    Derivatives: Quotient rule for the last two. Chain rule for the first.

    Integrals: observe that  \csc x=\frac{\sin x}{\sin^2x}=\frac{sinx}{1- \cos^2x} and make an appropriate sub, and the latter two require you to recall that  \int \frac{f'(x)}{f(x)} dx=ln(f(x))+C.
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by Kvothe the arcane)
    Derivatives: Quotient rule for the last two. Chain rule for the first.

    Integrals: observe that \csc x=\frac{\sin x}{\sin^2x}=\frac{1}{1- \cos^2x} and make an appropriate sub, and the latter two require you to recall that \int \frac{f'(x)}{f(x)} dx=ln(f(x)).
    Ohkay thank you man
    Offline

    22
    ReputationRep:
    (Original post by Kvothe the arcane)
    Derivatives: Quotient rule for the last two. Chain rule for the first.

    Integrals: observe that \csc x=\frac{\sin x}{\sin^2x}=\frac{1}{1- \cos^2x}
    • Community Assistant
    • Very Important Poster
    Offline

    20
    ReputationRep:
    Community Assistant
    Very Important Poster
    (Original post by Zacken)
    Have I made an error?

    Edit: I see .
 
 
 

University open days

  • University of Exeter
    Undergraduate Open Days - Exeter Campus Undergraduate
    Wed, 24 Oct '18
  • University of Bradford
    Faculty of Health Studies Postgraduate
    Wed, 24 Oct '18
  • Northumbria University
    All faculties Undergraduate
    Wed, 24 Oct '18
Poll
Who is most responsible for your success at university
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Equations

Best calculators for A level Maths

Tips on which model to get

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.