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How do you find $p (- 1)$ $p(-1)$ given $p (a) = - 4^{3 a}$ $p(a)=-4^(3a)$ ?

1 Answer

Feb 14, 2017

$- \frac{1}{64}$ $color(green)(- 1/64)$

Explanation:

If $p (a) = - 4^{3 a}$ $p(color(red)(a))=-4^(3color(red)a)$
then
$XXX p (- 1) = - 4^{3 \cdot (- 1)}$ $color(white)("XXX")p(color(red)(-1))=-4^(3 * color(red)(""(-1)))$

$XXXXX = - 4^{- 3}$ $color(white)("XXXXX")=-4^(-3)$

$XXXXX = - \frac{1}{4^{3}}$ $color(white)("XXXXX")=-1/(4^3)$

$XXXXX = - \frac{1}{64}$ $color(white)("XXXXX")=-1/64$

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