Ответ:
1) 5x = (2n + 1)π, 7x = (2m + 1)π
2) sin x - 3 cos x = 0
x = (2n + 1)π/4
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Ответ:
1) 5x = (2n + 1)π, 7x = (2m + 1)π
2) sin x - 3 cos x = 0
x = (2n + 1)π/4