JAMB - Mathematics (2022 - No. 1)

Solve for k in the equation \(\frac{1}{8}^{k+2}\) = 1
2
-4
-2
4

Explanation

\((8^{-1})^{k+2}\) = \((8^{0})\)

base 8 cancel out on both sides

-1(k+2) = 0

-k -2 = 0

: k = -2

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