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giúp mik nhóe các bn <style id="sweezy-cursors--styles" type="text/css">body a,
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----- Nội dung dịch tự động từ ảnh -----
Câu 1. Biểu thửc nào sau đây không phải là dơn thức?
3xy
B. 2+xy'.
С.
4.
D. 2x'y.
A. -5x'.
Câu2. Giá trị của biểu thức: Q - 2xy-5xy' tại x=2, y -1 là:
A. Q=-6.
Câu 3. Bậc của đơn thức 4'x'y là:
B.Q = 7.
С. О-6.
D. Q=-2.
A. 7.
В.3.
С. 6.
D. 5.
Câu 4. Đơn thức đồng dạng với dơn thức 3xy là:
A. xy.
Câu 5. Xác định đơn thức M để 2x'y' + M -3x'y'
A. M = x'y'.
Câu 6. Cho tam giác ABC vuông tại B, biết BC-12cm, AC-13cm. Đo dai canh AB là:
B.-3x'y.
C.3xy +1.
D. 3хy.
B. M = 3x'y.
C. M=-5x'y'.
D. M = 5x'y'.
A. 10cm.
B.1lcm.
С. 8ст.
D. Scm.
Câu 7. Cho AMNP cản tại P. Biểt góc M có số do bảng 40°. Số do góc P bằng:
В.40°.
С.100°.
D. 140°.
A. 80°.
Câu 8. Cho AABC có AB-10cm, AC-8em, BC-6cm. So sánh nào sau đây dùng?
A. DB>A.
B.A>B.
C.Â>B>C
D. B> A>C.
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----- Nội dung dịch tự động từ ảnh -----
Câu 1. Biểu thửc nào sau đây không phải là dơn thức?
3xy
B. 2+xy'.
С.
4.
D. 2x'y.
A. -5x'.
Câu2. Giá trị của biểu thức: Q - 2xy-5xy' tại x=2, y -1 là:
A. Q=-6.
Câu 3. Bậc của đơn thức 4'x'y là:
B.Q = 7.
С. О-6.
D. Q=-2.
A. 7.
В.3.
С. 6.
D. 5.
Câu 4. Đơn thức đồng dạng với dơn thức 3xy là:
A. xy.
Câu 5. Xác định đơn thức M để 2x'y' + M -3x'y'
A. M = x'y'.
Câu 6. Cho tam giác ABC vuông tại B, biết BC-12cm, AC-13cm. Đo dai canh AB là:
B.-3x'y.
C.3xy +1.
D. 3хy.
B. M = 3x'y.
C. M=-5x'y'.
D. M = 5x'y'.
A. 10cm.
B.1lcm.
С. 8ст.
D. Scm.
Câu 7. Cho AMNP cản tại P. Biểt góc M có số do bảng 40°. Số do góc P bằng:
В.40°.
С.100°.
D. 140°.
A. 80°.
Câu 8. Cho AABC có AB-10cm, AC-8em, BC-6cm. So sánh nào sau đây dùng?
A. DB>A.
B.A>B.
C.Â>B>C
D. B> A>C.