Question

3) If A =     3   1     and   B =    1    7                   0 -2  &

3) If A =     3   1     and   B =    1    7

                  0 -2                     5    -1

Find

a)      BA           

b) determinant B        

c) Adjoint A               

d) A-1                    

4) Using matrix method solve the following simultaneous equations

                          5x – 3y = 1

                        2x – 2y = -2   

5) Given that f(x) = 6x - 5 g(x) = 3x + 4 and h(x) = 4x – 6
                                                                                         2
    Find:-
i) g(-2) =       

ii) g[h(x)] =                            

iii) f[g(2)] =

iv) gh(2)                  

vi) h-1(11) =   


6. Given the functions            g(x) =   2x + 3      find g-1(x)

                                                            4x – 1                                                

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