Thể loại Giáo án bài giảng Toán học 8
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Ngày tạo 12/30/2012 10:26:35 PM +00:00
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KIỂM TRA 1 TIẾT
MÔN: ĐẠI SỐ 8 (Thời gian: 45 phút )
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Lời phê |
ĐỀ BÀI:
Bài 1(2đ): Dùng định nghĩa hai phân thức bằng nhau chứng tỏ rằng:
a) = b) =
Bài 2(3đ): Quy đồng mẫu thức các phân thức sau:
a) và b) và
Bài 3(3đ): Thực hiện các phép tính sau:
a)+ b) ( - ) :
Bài 4(2đ): Cho phân thức với x # -1 và x # 1
a) Hãy rút gọn phân thức đã cho.
b) Tính giá trị của phân thức tại x = 2.
BÀI LÀM:
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