Đề kiểm tra chương I Đại 9 đề 5

Chia sẻ bởi Nguyễn Văn Dũng | Ngày 13/10/2018 | 44

Chia sẻ tài liệu: Đề kiểm tra chương I Đại 9 đề 5 thuộc Đại số 9

Nội dung tài liệu:

Trường THCS ................ KIỂM TRA 1 TIẾT
Họ và tên:………………………………….. Môn: Đại số 9
Lớp 9….

Điểm
Lời phê của giáo viên







Bài 1: Rút gọn biểu thức
a)  b) 
c)  d) 
Bài 2 (2 điểm) Chứng minh đẳng thức:
 (với a 0 và a ≠1)
Bài 3: Cho biểu thức
P =  (Với x > 0; x /1; x/4)
a/ Rút gọn P.
b/ Với giá trị nào của x thì P có giá trị bằng
c/ Tính giá trị của P tại 
Bài 4 : Cho A = 
Tìm giá trị lớn nhất của A, giá trị đó đạt được khi x bằng bao nhiêu?
Bài làm
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