Решите уравнение: 1)√x=4 2)√y=0.4 3)3√x=7 4)10√z=3. Created by SleiN. matematika-ru

Решите уравнение: 1)√x=4 2)√y=0.4 3)3√x=7 4)10√z=3...

July 2022 1 18 Report

Решите уравнение:

1)√x=4
2)√y=0.4
3)3√x=7
4)10√z=3

Answers & Comments

svetazuna 1)
√х = 4,
(√х)² = 4²,
х = 16,

2)
√у = 0,4,
(√у)² = 0,4²,
у = 0,16,

3)
3√х = 7,
√х = 7/3,
(√х)² (7/3)²,
х = 49/9,
х = 5 4/9,

4)
10√z = 3,
√z = 3/10,
(√z)² = (3/10)²,
z = 9/100 (или 0,09)

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