Ответ: B)
Объяснение:
(1.5а^2-а) - (1.5*3^2-3) = 4
1.5а^2 - а - 14.5 = 0
3а^2 - 2а - 29 = 0
D=4+12*29=352
(a)1;2 = (2 +/- 4V22)/6 = (1+/-2V22)/3
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Ответ: B)
Объяснение:
(1.5а^2-а) - (1.5*3^2-3) = 4
1.5а^2 - а - 14.5 = 0
3а^2 - 2а - 29 = 0
D=4+12*29=352
(a)1;2 = (2 +/- 4V22)/6 = (1+/-2V22)/3