Задача 58482 ...

6048ddadc87bcc1c7d524453

11.03.2021 13:47:23

1) sin 8x = 1/2;
2) sin 4x/11 = 0;
3) sin(7x - π/6) = -1;
4) 2 sin(3x + π/3) + 1 = 0.

5f3ea7e3faf909182968ddd9

11.03.2021 14:15:33

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1.
[m]8x=\frac{π}{2}+2πn, n ∈ [/m] [b]Z[/b] ⇒

[m]x=\frac{π}{16}+\frac{π}{4}n, n ∈ [/m] [b]Z[/b]

2.
[m]\frac{4x}{11}=πk, k ∈ [/m] [b]Z[/b] ⇒

[m]x=\frac{11π}{4}k, k ∈ [/m] [b]Z[/b]

3.
[m]7x-\frac{π}{6}=-\frac{π}{2}+2πn, n ∈ [/m] [b]Z[/b] ⇒