2sin17x + корень 3*cos5x+sin5x=0
2sin17x +√3*cos5x+sin5x=0 (Как я поняла, корень относится только к 3)
2sin17x +√3*cos5x+sin5x=0 | :2
sin17x + √3 / 2 cos5x + 1/ 2sin5x = 0
sin17x + cosπ / 6cos5x + sinπ / 6sin5x = 0
sin17x + cos (π / 6 - 5x) = 0
cos (π / 2 -17x) + cos (π / 6 - 5x) = 0
2cos (π / 3 - 11x)сos (π / 6 - 6x) = 0
cos (π / 3 - 11x) = 0
сos (π / 6 - 6x) = 0
π / 3 - 11x = π/ 2 + πn, nєZ
π/ 6 - 6x = π /2 + πn, nєZ
-11x = π/ 6 + πn, n є Z
-6x = π /3 + πn, nєZ
x = - π/66 - πn/11,nєZ
x = -π/18 - πn/6, nєZ
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Answers & Comments
2sin17x +√3*cos5x+sin5x=0 (Как я поняла, корень относится только к 3)
2sin17x +√3*cos5x+sin5x=0 | :2
sin17x + √3 / 2 cos5x + 1/ 2sin5x = 0
sin17x + cosπ / 6cos5x + sinπ / 6sin5x = 0
sin17x + cos (π / 6 - 5x) = 0
cos (π / 2 -17x) + cos (π / 6 - 5x) = 0
2cos (π / 3 - 11x)сos (π / 6 - 6x) = 0
cos (π / 3 - 11x) = 0
сos (π / 6 - 6x) = 0
π / 3 - 11x = π/ 2 + πn, nєZ
π/ 6 - 6x = π /2 + πn, nєZ
-11x = π/ 6 + πn, n є Z
-6x = π /3 + πn, nєZ
x = - π/66 - πn/11,nєZ
x = -π/18 - πn/6, nєZ