1) 3 12 ^ (-2) = 3 (1 / 12 ^ 2) = 3 * (1 / 144) = 1 / 48
2) 2^(-3) + 6^(-1) = 1 / 2^3 + 1 / 6 = 1 / 8 + 1 / 6 = 3 / 24 + 4 / 24 = 7 / 24
1) 3 12 ^ (-2) = 3 (1 / 12 ^ 2) = 3 * (1 / 144) = 1 / 48
2) 2^(-3) + 6^(-1) = 1 / 2^3 + 1 / 6 = 1 / 8 + 1 / 6 = 3 / 24 + 4 / 24 = 7 / 24