Answers
>
Maths
>
A Level
>
Article
If f(x)=x^2 and g(x)=5x-11, then what is fgg(x) when x=3?
g(3)=5(3)-11=15-11=
4
gg(3)=g(
4
)=5(4)-11= 20-11=
9
fgg(3)=f(
9
)=9
2
=81
fgg(3)=81
SM
Answered by
Simon M.
•
Maths tutor
4779 Views
See similar Maths A Level tutors
Related Maths A Level answers
All answers ▸
Find the tangent of the following curve, y=xe^x, at x=1 expressing it in the form y=mx+c?
How to perform integration by substitution. (e.g. Find the integral of (2x)/((4+(3(x^2)))^2)) (10 marks)
How would you use the following expression to approximate [(4-5x)/(1+2x)(2-x)] when x=5 (A2 pure)
If y = 1/x^3, find an expression for dy/dx