Two marks exercise problems V — task. Mathematics State Board, Class 10.

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Answer variants:

$\{y | y = (2x + 1)^2, x \in \mathbb{N}\}$

$x^4 - 2x$

$\{y | y = 2x^2 + 1, x \in \mathbb{N}\}$

$\{y | y = 2x + 1, x \in \mathbb{N}\}$

$\{y | y = (2x + 1)^3, x \in \mathbb{N}\}$

$x^4 - 2x^2 - 1$

$(x^4 - 2x^2)^2 - 1$

$x^4 - 2x^2$

$f(x) = x^2 - 1$ . Find:

(i)

$f \circ f$

$=$

(ii)

$f \circ f \circ f$

$=$

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13. Two marks exercise problems V