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1) = cosx [π/3; π/2]
2) = cosx [- π; π/4]
3) = sinx [0; π/6]
4) = sinx [π/6; π]
5) = sinx [π/6; 2π]
6) = sin(π/2 x) cos(π + x)
7) = sin(π/2 x) + cos(π + x)
8) = 5 cosx
9) = 7 sin2x
10) = 1 + 2 cos(3x)
11) = 3 4sin(5x)
12) , sin11
13) , cos97
14) , 2 sin31
15) , 2 tg46
16) = 3sin(2x) + 4
17) = 6 cosx tg
18) = 5sin(3x) - 12
19) = 14 sinx tg
20) = 2(cos2(/2 - sin2x/2)
21) = sin(2x) / sinx
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1) 2sin x + 1 =0. .
2) √3ctg x + 3 =0. .
3) tgxctgx + cosx = 0, [0;2π].
4) 0 2sin x + 1 =0. .
5) π/2 2cos x + √3 =0.
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6) cos(x+2000π) = 0, [0;2π]. .
7) (sinx/tgx) = 0 [0;2π].
8) cos (πx) = 1.
, (1;6)
9) 4cos x = ² + 4
10) sin (37π/2 + ) = 32 + 1
11)
Sin(π - x) cos(π/2 +x) = -1. .
12) C cos(π/2 - x) 3cos2x = 2 [-π; π/2]
13)
Sin (πx)(cosx - 2) = 0
14) cos(πx)(sin(2x) + √2) = 0, [2;3]
15) sin(π - x) cos(π/2 + x) = √3,
[-π;2π]
