одинаковые баллоны с природным газом находятся в разных местах: один в теплом помещении, другой в холодном, третий на снегу на улице. в каком из них давление газа наименьшая?

1)2cos2 x – 11sin 2x = 12

2)2sin2 x – 3sin 2x – 4cos 2x =4

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