Sách Toán – Học Toán – Đề Thi Toán https://booktoan.com Học toán, Đề thi toán, Sách giáo khoa Toán, trắc nghiệm Toán online Tue, 30 Sep 2025 14:37:17 +0000 vi hourly 1 https://wordpress.org/?v=7.1.2 Trắc nghiệm Đơn điệu hàm số 12 – Đồ thị https://booktoan.com/trac-nghiem-don-dieu-ham-so-12-do-thi.html https://booktoan.com/trac-nghiem-don-dieu-ham-so-12-do-thi.html#respond Tue, 30 Sep 2025 14:37:14 +0000 https://booktoan.com/?p=234093 }0,\forall x \neq 1$. B. $y^{\prime}{]]> https://booktoan.com/trac-nghiem-don-dieu-ham-so-12-do-thi.html/feed 0 Cho hàm số $y=f(x)$ có đạo hàm $f'(x) = \frac{-x^2+4}{(x+1)^2}$. Hàm số nghịch biến trên khoảng nào? https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-frac-x24x12-ham-so-nghich-bien-tren-khoang-nao.html https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-frac-x24x12-ham-so-nghich-bien-tren-khoang-nao.html#respond Tue, 16 Sep 2025 15:36:34 +0000 https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-frac-x24x12-ham-so-nghich-bien-tren-khoang-nao.html https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-frac-x24x12-ham-so-nghich-bien-tren-khoang-nao.html/feed 0 Cho hàm số $y=f(x)$ có đạo hàm $f'(x) = x^2 – 4x + 3$. Hàm số đồng biến trên khoảng nào? https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-x2-4x-3-ham-so-dong-bien-tren-khoang-nao.html https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-x2-4x-3-ham-so-dong-bien-tren-khoang-nao.html#respond Tue, 16 Sep 2025 14:03:16 +0000 https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-x2-4x-3-ham-so-dong-bien-tren-khoang-nao.html https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-x2-4x-3-ham-so-dong-bien-tren-khoang-nao.html/feed 0 Cho hàm số $y=f(x)$ có đạo hàm $f'(x) = (x+1)(x-2)$. Hàm số nghịch biến trên khoảng nào? https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-x1x-2-ham-so-nghich-bien-tren-khoang-nao.html https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-x1x-2-ham-so-nghich-bien-tren-khoang-nao.html#respond Tue, 16 Sep 2025 13:36:59 +0000 https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-x1x-2-ham-so-nghich-bien-tren-khoang-nao.html https://booktoan.com/cho-ham-so-yfx-co-dao-ham-fx-x1x-2-ham-so-nghich-bien-tren-khoang-nao.html/feed 0 Cho hàm số $y = \frac{ax^2+bx+c}{dx+e}$ có bảng biến thiên hàm hữu tỷ sau: https://booktoan.com/cho-ham-so-y-fracax2bxcdxe-co-bang-bien-thien-ham-huu-ty-sau-2.html https://booktoan.com/cho-ham-so-y-fracax2bxcdxe-co-bang-bien-thien-ham-huu-ty-sau-2.html#respond Mon, 15 Sep 2025 02:58:58 +0000 https://booktoan.com/cho-ham-so-y-fracax2bxcdxe-co-bang-bien-thien-ham-huu-ty-sau-2.html https://booktoan.com/cho-ham-so-y-fracax2bxcdxe-co-bang-bien-thien-ham-huu-ty-sau-2.html/feed 0 Cho hàm số $y = ax^4+bx^2+c$ có bảng biến thiên hàm trùng phương sau: https://booktoan.com/cho-ham-so-y-ax4bx2c-co-bang-bien-thien-ham-trung-phuong-sau.html https://booktoan.com/cho-ham-so-y-ax4bx2c-co-bang-bien-thien-ham-trung-phuong-sau.html#respond Mon, 15 Sep 2025 02:38:30 +0000 https://booktoan.com/cho-ham-so-y-ax4bx2c-co-bang-bien-thien-ham-trung-phuong-sau.html https://booktoan.com/cho-ham-so-y-ax4bx2c-co-bang-bien-thien-ham-trung-phuong-sau.html/feed 0 Cho hàm số $y = \frac{ax+b}{cx+d}$ có bảng biến thiên hàm nhất biến sau: https://booktoan.com/cho-ham-so-y-fracaxbcxd-co-bang-bien-thien-ham-nhat-bien-sau.html https://booktoan.com/cho-ham-so-y-fracaxbcxd-co-bang-bien-thien-ham-nhat-bien-sau.html#respond Mon, 15 Sep 2025 02:13:14 +0000 https://booktoan.com/cho-ham-so-y-fracaxbcxd-co-bang-bien-thien-ham-nhat-bien-sau.html https://booktoan.com/cho-ham-so-y-fracaxbcxd-co-bang-bien-thien-ham-nhat-bien-sau.html/feed 0 Cho hàm số $y = f(x)$ có bảng biến thiên hàm số bậc ba sau https://booktoan.com/cho-ham-so-y-fx-co-bang-bien-thien-sau-beginarraycccccccc.html https://booktoan.com/cho-ham-so-y-fx-co-bang-bien-thien-sau-beginarraycccccccc.html#respond Mon, 15 Sep 2025 00:48:11 +0000 https://booktoan.com/cho-ham-so-y-fx-co-bang-bien-thien-sau-beginarraycccccccc.html https://booktoan.com/cho-ham-so-y-fx-co-bang-bien-thien-sau-beginarraycccccccc.html/feed 0 Cho hàm số $y=\dfrac{-x^2+5x-1}{-x-3}$. Khẳng định nào sau đây đúng? https://booktoan.com/cho-ham-so-ydfrac-x25x-1-x-3-khang-dinh-nao-sau-day-dung.html https://booktoan.com/cho-ham-so-ydfrac-x25x-1-x-3-khang-dinh-nao-sau-day-dung.html#respond Sun, 14 Sep 2025 13:41:25 +0000 https://booktoan.com/cho-ham-so-ydfrac-x25x-1-x-3-khang-dinh-nao-sau-day-dung.html https://booktoan.com/cho-ham-so-ydfrac-x25x-1-x-3-khang-dinh-nao-sau-day-dung.html/feed 0 Hàm số $y=\frac{ax+b}{cx+d}$ nghịch biến trên các khoảng: https://booktoan.com/cau-hoi-mau.html https://booktoan.com/cau-hoi-mau.html#respond Sun, 14 Sep 2025 13:31:13 +0000 https://booktoan.com/cau-hoi-mau.html https://booktoan.com/cau-hoi-mau.html/feed 0