Five marks exercise problems IX — task. Mathematics State Board, Class 10.

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If the function

$f$ is defined by

$f (x) = \{\begin{array}{l} x + 2 \\ 2 \\ x - 1 \end{array} \begin{array}{l} if \\ if \\ if \end{array} \begin{array}{l} x > 1 \\ - 1 \leq x \leq 1 \\ - 3 < x < - 1 \end{array}$ ; find the values of

(i)

$f(3)$

$=$

(ii)

$f(0)$

$=$

(iii)

$f(-1.5)$

$=$

(iv)

$f(2) + f(-2)$

$=$

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24. Five marks exercise problems IX

Exercise condition: