457
9 вариант
1. Решите уравнения:
60° 90° |120° 135º1504
п
cos(2х-4)=
----
2
a)
л | 21
пзп 50
=
sia - 2

2
6)
وای به حاد
4
+ 5) - 5
25
tg) 4х +
в)
6
9
П
cos 6x=
8
-1
г)
2-1
о
парото Трнинг |
3
д)
sin(4x -=1
8 (3х -=-1
о
2
е)
— 4 sin'x– 6sinx + 4 = 0
ж)
о

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