Question

Вычислите: 1)(4/5)2 2)(-2/3)2 3)(1 1/2)2 4)(-2 1/4) 5)(2.1)2 6)(-6)3 7)(9)3 8)(-1)3 9)(1 3/4)3 10)(-1.2)3 Тема:степень с натуральным показателем.

Answer 1

1) =16/25
2) =4/9
3) =9/4=2 1/4
4) степень ?
5) =4,41
6) =-196
7) =729
8) =-1
9) =(7/4)3=343/64=5 23/64
10) = -1,728

Answer 2

1. (4/5)2 = (4/5) * (4/5) = 16/25
2. (-2/3)2 = (-2/3) * (-2/3) = 4/9
3. (1 1/2)2 = (3/2) * (3/2) = 9/4
4. (-2 1/4)2 = (-9/4) * (-9/4) = 81/16
5. (2.1)2 = 2.1 * 2.1 = 4.41
6. (-6)3 = -6 * -6 * -6 = -216
7. (9)3 = 9 * 9 * 9 = 729
8. (-1)3 = -1 * -1 * -1 = -1
9. (1 3/4)3 = (7/4) * (7/4) * (7/4) = 343/64
10. (-1.2)3 = -1.2 * -1.2 * -1.2 = -1.728