百度试题 结果1 题目How many solutions are there to the equation ?Explain. 相关知识点: 试题来源: 解析 Infinitely many. The tangent function is an increasing, periodic function and y= x is increasing.反馈 收藏
百度试题 结果1 题目How many solutions does the equation |x+2|=2x have( ). A. 0B. 1C. 2D. 3相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 结果1 题目How many solutions does the equation |2x+3|=3x have( )? A. 0B. 1C. 2D. 4相关知识点: 试题来源: 解析 B 反馈 收藏
【题目】Example 8: How many real solutions are there to theequation |2x -11 +lx -2|=|x +1l? There is/are ().(A)1(B)0(C)2(D)3(E)Infinite many 相关知识点: 试题来源: 解析 【解析】Solution:(E).The original equation can be rewritten as|2x-1|+|x-2|=|(2x-1)-(x-2)| ...
百度试题 结果1 题目How many solutions has equation x. y = 7757 with two unknowns on the set of natural numbers?n=2 相关知识点: 试题来源: 解析 n=2D L777) D 2 反馈 收藏
解析 Solution: (E). The original equation can be rewritten as |x-2|+|x-3|=|(x-2)-(x-3)| By property (1), we have (x-2)(x-3)≤0 Solving we get:2≤x≤3 . Therefore, the equation has more than 3 solutions. 反馈 收藏 ...
解析 【解析】 Solution: (E). The original equation can be rewritten as 12x-11+1x-21=1(2x-1)-(x-2)1 By property (1), we have (2x-1)(x-2)≤0 Solving we get: 1/2≤x≤2 . Therefore, the equation has infinitely many solu- tions. 反馈 收藏 ...
B细节题。第二段后半部分共提及了四种治疗打鼾的办法,分别是:1. Some devices keep the mouth shut. 2. A medical operation is also possible. 3. Other devices listen for the sound of snoring and then wake the patient. 4. The new anti-snoring device was developed by a dentist(牙医)。
题目【题目】20. Consider the equation 2u +v +w +x +y +z=3.How many solutions (u, v, w, x, y, z) of non-negative integers does this equation have?(A)27(B)25(C)30(D)40(E)35 相关知识点: 试题来源: 解析 【解析】 20.D ...
百度试题 结果1 题目8. Use a graphical method to determine how many solutions there are to the equation2 tan x = 1 + sin x in the interval 0° ≤ x ≤ 360°. 相关知识点: 试题来源: 解析 4 反馈 收藏