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ban danh vua thoi
Bằng
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Dựa vào BBT ta thấy hàm số có TXĐ: D = R \{-l}, hàm số nghịch biến trên từng khoảng xác định và có
TCN là y = -2.
Ta thấy các hàm số ở cả 4 đáp án đều có TXĐ: D = R \ {-l}.
Tuy nhiên chỉ có đáp án A và đáp án D là đồ thị hàm số có TCN là đường y = -2.
+) Xét đáp án A:
⇒ hàm số đồng biến trên từng khoảng xác định ⇒ loại đáp án A
Chọn D
Chọn C
Từ hình vẽ ta suy ra: tiệm cận đứng của đồ thị hàm số có phương trình x = -1, nên hàm số đã cho xác định khi và chỉ khi x ≠ -1
Trên mỗi khoảng
đồ thị hàm số là một đường đi lên từ trái sang phải, nên hàm số đồng biến trên mỗi khoảng ![]()
Vậy y' > 0, ∀ x ≠ - 1





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cái này ko chỉ có mỗi số 8 đâu chị ey
trời ơi cái này nhìn lé con mắt con bt hông cái này mà đố cô kiểu này thì cô cho ăn dép báo cáo
lấy 6 + 2 hoặc 7 + 1 ở trong dống đấy là ra :)
dẹp đi tìm đc chết liền _^_
Ở CHỖ KO PHẢI SỐ 8
Mình tìm thấy rồi!!!Ở dòng thứ 12 từ dưới lên,số thứ 18 từ phải sang!!!
mình nhìn thấy một số 1, một số 2, hai số 7 nha
hàng 12 từ dưới lên cột 18 từ phải sang trái
có 7 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8
( từ trên xuống dưới)
Không được đăng linh tinh đâu bạn sẽ bị báo cáo
16 dòng từ dưới lên số thứ 25 , dễ
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