Đề kiểm tra Toán 12 năm 2023 trường Nguyễn Khuyến & Lê Thánh Tông – TP HCM
giới thiệu đến quý thầy, cô giáo và các em học sinh lớp 12 đề kiểm tra định kỳ môn Toán 12 năm học 2022 – 2023 trường THCS – THPT Nguyễn Khuyến và trường TH – THCS – THPT Lê Thánh Tông, thành phố Hồ Chí Minh; kỳ thi được diễn ra vào Chủ Nhật ngày 19 tháng 03 năm 2023.
Trích dẫn Đề kiểm tra Toán 12 năm 2023 trường Nguyễn Khuyến & Lê Thánh Tông – TP HCM:
+ Ông A bị nhiễm một loại virus nên phải nhập viện và được điều trị ngay lập tức. Kể từ ngày bắt đầu nhập viện, sau mỗi ngày điều trị thì số lượng virus trong cơ thể ông A giảm đi 10% so với ngày trước đó. Hỏi sau ít nhất bao nhiêu ngày thì ông A sẽ được xuất viện, biết rằng ông được xuất viện khi lượng virus trong cơ thể của ông không vượt quá 30%?
+ Trong không gian Oxyz, khối đa diện OAMEN có thể tích 296 với các đỉnh A 0 0 8 2 M N E a b 5 0 0 0 7 0 0, trong đó a b 0. Khi a b thay đổi thì đường thằng AE luôn tiếp xúc với mặt cầu 2 2 2 2 S x y z c. Mặt cầu S có bán kính nhỏ nhất bằng?
+ Cho hàm số y f x liên tục trên 0 8 và có đồ thị như hình vẽ. Biết 1 2 3 S S S 23 3 15 lần lượt là diện tích hình phẳng giới hạn bởi đồ thị y f x và trục hoành. Giá trị của 6 3 2 2 5 I x x f x x 2 9 9 3 10 d là?
Đề kiểm tra Toán 12 lần 2 năm 2022 – 2023 trường THPT chuyên Vĩnh Phúc
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