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tamnhutr2002
2 năm trước
Toán 10 đại số ai giúp mk vs !!! làm tự luận ạ câu 1 : tìm GTLN của biểu thức B = -2X^2 +3X +5 trên đoạn [ 2:5] câu 2 : gọi a là gtnn của C = x^2+2x+y^2-4y+6 khi x0=x và y0=y . tính a +2x0-yo câu 3: GTLN của f(x) = x(3-x^2) trên [0:3] là câu 4: GTLN của hs y= 5x^4 -x^5 trên [0;5]
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