Posted by Samantha on Wednesday, December 19, 2012 at 1:45pm.
Good evening to all around the world.
Need help with this question, however i must show my answers supported by the working out. Please help.
This question is difficult, the one who solves it for me is my hero!!!!
Q11)
Two functions f and g are defined by
F:x (arrow) 25/(3x2)
g:x (arrow) x^2
Find
a) The inverse function f1
b)The composite function fg
c) The solution of equation fg(x)+2/(x1).
Please show me how to work it out so i understand. Thank you!!!!! x

sorry, do not understand notation  Damon, Wednesday, December 19, 2012 at 2:09pm
What does (arrow) mean?

Complex Algaebra, Plz Help!!  Samantha, Wednesday, December 19, 2012 at 2:13pm
If we can assume it means =
I think that is right

Complex Algaebra, Plz Help!!  Damon, Wednesday, December 19, 2012 at 2:34pm
y = 25/(3x2)
find inverse
x = 25/(3y2)
3 x y  2 x = 25
3 x y = (2x  25)
y = (2x25)/3x
f(x^2) = 25/(3x^22)
c is not an equation, no = sign
so no solution

Complex Algaebra, Plz Help!!  Samantha, Wednesday, December 19, 2012 at 3:15pm
Sorry i wrote c wrong
its
the solution of equation fg(x)=2/(x1)
really sorry, had less sleep last night

Complex Algaebra, Plz Help!!  Damon, Wednesday, December 19, 2012 at 3:37pm
25/(3x^22) = 2/(x1)
25(x1) = 6 x^2  4
25 x  25 = 6 x^2  4
6x^2 25 x +21 = 0
(6x7)(x3) = 0
x = 3 or 7/6

Complex Algaebra, Plz Help!!  Samantha, Wednesday, December 19, 2012 at 4:17pm
Could you ellaborate further on how you got your answer for b please Damon.
The composite function fg
thank you
Answer This Question
Related Questions
 Maths plz help  A test contain of 12 question out of which candidate are to ...
 Algaebra  Two functions f and g are defined by f:x = x^2 + 3 g:x = 2x+1 Find ...
 Maths equation plz help urgently  0^x=100? Please help can complex number help ...
 Math, please help me.  This is the last question of my quiz, I need help with ...
 math  Given that a:b = 8:5 and b:c= 3:4 find the ratio a:b:c Give your answer ...
 chemistry  This question I really don't get it. I tried tried tried to figure ...
 college algebraI really need help!!  solve the following exponential equation...
 Calculus i need help plz plz  If y=ws^3/d^4 find the % increase in 'y' when 'w...
 TO MS SUE  Please check my answers to my question, I posted this question ...
 CHEMISTRY  I am having a ton of trouble with this lab question, I do not ...
More Related Questions