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5.6^(-5) * 3.4^(-7) * 5.6^(3) * 3.4^(-4) =
5.6^(-5) * 5.6^(3) * 3.4^(-7) * 3.4^(-4) { we are using the rule a^m * a^n = a^(m + n) }
5.6^(-2) * 3.4^(-11)