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Composite function question

How could we find fg if we don't have the g function equation?
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(edited 1 year ago)
Reply 1
Original post by cj104
How could we find fg if we don't have the g function equation?
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Make up a 'g' :smile:

What function is used twice within the definition of F(x) and would be a good candidate to try?
Reply 2
Original post by davros
Make up a 'g' :smile:

What function is used twice within the definition of F(x) and would be a good candidate to try?

So would that make g the 4th root of x and f = 2+x / x ?
Reply 3
Original post by cj104
So would that make g the 4th root of x and f = 2+x / x ?

That looks good!

Btw, if you want people to look at maths problems the best place to post is in the Maths subforum. You've posted in Mathematics which is for questions about university courses, applications etc :smile:
Reply 4
Original post by davros
That looks good!

Btw, if you want people to look at maths problems the best place to post is in the Maths subforum. You've posted in Mathematics which is for questions about university courses, applications etc :smile:

Ohh, you're right, ty

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