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maxbukreev23
@maxbukreev23
July 2022
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найдите корни следующих уравнений с точностью до 0 01 : 1)2,17х^2-1,8х-1,06=0 : 2)7x^2-8.06x+2.16=0
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гюйс
Verified answer
2,17х² -1,8х -1,06=0
D/4=0,81+1,06*2,17=3,1102≈+-1,76²
х1=(0,9+1,76)/2,17≈1,23
х2=(0,9-1,76)/2,17≈ - 0,40
7х² -8,06х+2,16=0
D/4=16,2409-2,16*7=1,1209≈+-1,06²
х1=(4,03+1,06)/7≈0,73
х2=(4,03-1,06)/7≈0,42
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Answers & Comments
Verified answer
2,17х² -1,8х -1,06=0D/4=0,81+1,06*2,17=3,1102≈+-1,76²
х1=(0,9+1,76)/2,17≈1,23
х2=(0,9-1,76)/2,17≈ - 0,40
7х² -8,06х+2,16=0
D/4=16,2409-2,16*7=1,1209≈+-1,06²
х1=(4,03+1,06)/7≈0,73
х2=(4,03-1,06)/7≈0,42