1) Подставляем x=0.6:11/0.6 - 1/2*0.6= 18.3333 - 0.5= 17.8333
2) Подставляем x=8, y=1.8:y^2 + 2xy / 7x 77x / 2x + y= 1.8^2 + 21.88 / 78 778 / 28 + 1.8= 3.24 + 28.8 / 56 616 / 16 + 1.8= 31.04 / 56*38.5 / 16 + 1.8= 31.04 / 2146 / 16 + 1.8= 31.04 / 134.125 + 1.8≈ 0.2316 + 1.8≈ 2.0316
1) Подставляем x=0.6:
11/0.6 - 1/2*0.6
= 18.3333 - 0.5
= 17.8333
2) Подставляем x=8, y=1.8:
y^2 + 2xy / 7x 77x / 2x + y
= 1.8^2 + 21.88 / 78 778 / 28 + 1.8
= 3.24 + 28.8 / 56 616 / 16 + 1.8
= 31.04 / 56*38.5 / 16 + 1.8
= 31.04 / 2146 / 16 + 1.8
= 31.04 / 134.125 + 1.8
≈ 0.2316 + 1.8
≈ 2.0316