ĐỀ KIỂM TRA 1 TIẾT CHƯƠNG 2

ĐỀ SỐ 1

MÔN: TOÁN (GIẢI TÍCH) – LỚP 12
Trường THPT Lê Lợi
Thời gian:…

Câu 1:(3đ). CMR . Nếu y = ex.cosx ; Thì :
2y’ – 2y – y’’ = 0.
Câu 2:(3đ). Tìm GTLN-NN của hàm số y = (x2 – 3x +1)ex trên đoạn [0;3]
Câu 3:(4đ). a) Tìm x : log4(x +2 ) = log2x
b) Dùng đồ thị hoặc tính đơn điệu để giải pt: log2(x - 2) = 5 - x
Bài làm
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