Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    0
    ReputationRep:
    with fx=cosx
    and gx= x+90
    find fg(x)
    and it's domain and range
    HOW DO U DO THAT

    so fg(x)= cos (x+90)
    but i'm stuck with the domain and range.
    apparently:

    ans=
    domain= 0<x<90
    range=
    f(x)> or = -1
    and
    less than or equal to 0.

    HOW?
    • Thread Starter
    Offline

    0
    ReputationRep:
    will fg(x) 's domain or range
    have anything to do with
    their respective domain and range?
    • PS Helper
    Offline

    4
    ReputationRep:
    PS Helper
    (Original post by zomgleh)
    will fg(x) 's domain or range
    have anything to do with
    their respective domain and range?

    is there any more information in the question?
 
 
 
Poll
Do you agree with the PM's proposal to cut tuition fees for some courses?

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.