simplify f^{-1}(-2)

Solution

simplify

f^{- 1} (- 2)

- \frac{2}{f}

Solution steps

f^{- 1} (- 2)

Apply exponent rule:

a^{- 1} = \frac{1}{a}

= (- 2) \frac{1}{f}

Remove parentheses:

(- a) = - a

= - \frac{1}{f} \cdot 2

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= - \frac{1 \cdot 2}{f}

Multiply the numbers:

1 \cdot 2 = 2

= - \frac{2}{f}

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