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Quiz
Algebra Main Page
Functions f and g are defined by f:x ax + 1 and g:x bx - 1, a0, b0, where a and b are constants.
(i) Find the expressions for fg, gf and fg-1
(ii) Given that fg = gf, find the relationship between a and b. Hence, deduce the that f(x) + g(x) = 2x
Answers
Functions f and
g
are defined by f:x
ax + 1 and g:x
0,
b
