И)
2¹⁹ * 27³ + 15 * 4⁹ * 9⁴ = 2¹⁹ * (3³)³ + 5*3 * (2²)⁹ * (3²)⁴ =
6⁹ * 2¹⁰ + 12¹⁰ 6⁹ * 2¹⁰ + (6*2)¹⁰
= 2¹⁹ * 3⁹ + 5 * 3 * 2¹⁸ * 3⁸ = 2¹⁹ * 3⁹ + 5 * 2¹⁸ * 3⁹ =
6⁹ * 2¹⁰ + 6¹⁰ * 2 ¹⁰ 6⁹ * 2¹⁰ + 6¹⁰ * 2¹⁰
= 2¹⁸ * 3⁹ * (2 +5) = 2¹⁸ * 3⁹ = 2⁸ * 3⁹ = 2⁸ * 3⁹ = 1/2 = 0,5
6⁹ * 2¹⁰ * (1+6) 2¹⁰ * 6⁹ (2*3)⁹ 2⁹ * 3⁹