Hey there! Sign in to join this conversationNew here? Join for free
Turn on thread page Beta
    • Thread Starter
    Offline

    1
    ReputationRep:
    what´s the value of db ?

    d/db(tg(b)) = a/L

    a,L : constants

    I take the advantage of this topic to ask something, in my HP calculator the value of d/db(tg(b)) shows SQ(tan(a))+1

    what is that SQ?

    thanks! :cool:
    Offline

    10
    ReputationRep:
    d(tg(b)) = a*db/L
    db =(L/a) d(tg(b))

    It's impossible to now what the answer is since you haven't defined tg(b). If t=1 g(b) = 1, then db = 0. If t=(a/L) and g(b) = 1, db = 1. tg(b) could literally be anything which can be integrated (since it's anti-derivative exists).
    Offline

    2
    ReputationRep:
    I think that "tg" is another way of saying "tan". But I still don't understand the question! MarcosJr, what do a and L mean?
    Offline

    2
    ReputationRep:
    (Original post by MarcosJr)
    I take the advantage of this topic to ask something, in my HP calculator the value of d/db(tg(b)) shows SQ(tan(a))+1

    what is that SQ?
    It means "square".

    (d/db) tan(b)
    = sec^2(b)
    = tan^2(b) + 1
    = SQ(tan(b)) + 1
    • Thread Starter
    Offline

    1
    ReputationRep:
    sorry guys, tg means tan




    thanks for the explanation!
    • Thread Starter
    Offline

    1
    ReputationRep:
    so, square means that the value is squared ² ?
    Offline

    2
    ReputationRep:
    (Original post by MarcosJr)
    so, square means that the value is squared 2 ?
    Yes, SQ(10) = 100.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: April 10, 2006
Poll
“Yanny” or “Laurel”
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

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.