1) sin(x/4) = 1sin(x/4) = sin(π/2)x/4 = π/2 + 2kπ или x/4 = (π - π/2) + 2kπx = 2π + 8kπ или x = 3π + 8kπ, где k - целое число
2) cos(6x) = -1/26x = 2π/3 + 2kπ или 6x = 4π/3 + 2kπx = π/9 + kπ/3 или x = 2π/9 + kπ/3, где k - целое число
3) tg(2x) = 7.62x = arctg(7.6) + πk или 2x = arctg(7.6) + πkx = 0.705 + πk or x = -2.437 + πk, где k - целое число
4) -3sin(8x - π/9) = -1sin(8x - π/9) = 1/38x - π/9 = π/2 + 2πk8x = 5π/6 + π/9 + 2πkx = 11π/24 + π/72 + kπ/4, где k - целое число
5) cos(x) - 10sin(x) = 0cos(x) = 10sin(x)cos(x) = 10√(1 - cos^2(x))cos^2(x) = 100 - 100cos^2(x)101cos^2(x) = 100cos^2(x) = 100/101cos(x) = ±10/√101x = arccos(±10/√101) + 2kπ, где k - целое число
6) 4cos^2(6x) - 3 = 04cos^2(6x) = 3cos^2(6x) = 3/4cos(6x) = ±√3/26x = ±π/6 + 2πkx = ±π/36 + kπ/3, где k - целое число
1) sin(x/4) = 1
sin(x/4) = sin(π/2)
x/4 = π/2 + 2kπ или x/4 = (π - π/2) + 2kπ
x = 2π + 8kπ или x = 3π + 8kπ, где k - целое число
2) cos(6x) = -1/2
6x = 2π/3 + 2kπ или 6x = 4π/3 + 2kπ
x = π/9 + kπ/3 или x = 2π/9 + kπ/3, где k - целое число
3) tg(2x) = 7.6
2x = arctg(7.6) + πk или 2x = arctg(7.6) + πk
x = 0.705 + πk or x = -2.437 + πk, где k - целое число
4) -3sin(8x - π/9) = -1
sin(8x - π/9) = 1/3
8x - π/9 = π/2 + 2πk
8x = 5π/6 + π/9 + 2πk
x = 11π/24 + π/72 + kπ/4, где k - целое число
5) cos(x) - 10sin(x) = 0
cos(x) = 10sin(x)
cos(x) = 10√(1 - cos^2(x))
cos^2(x) = 100 - 100cos^2(x)
101cos^2(x) = 100
cos^2(x) = 100/101
cos(x) = ±10/√101
x = arccos(±10/√101) + 2kπ, где k - целое число
6) 4cos^2(6x) - 3 = 0
4cos^2(6x) = 3
cos^2(6x) = 3/4
cos(6x) = ±√3/2
6x = ±π/6 + 2πk
x = ±π/36 + kπ/3, где k - целое число