解得:a=1,把a=1代入方程得:(2x-1)/3=(x+1)/2-1,去分母,得2(2x-1)=3(x+1)-6,去括号,得4x-2=3x+3-6,移项,得4x-3x=3-6+2,合并同类项,得x=-1. 把x=4代入方程2(2x-1)=3(x+a)-1,解方程求得a的值,然后把a的值代入方程,解方程求得x的值....
Answer ALL questions. Write your answers in the spaces provided.1.g(x)=(2x+5)/(x-3) x≥5(a)Find gg(5).(2)(b)State the range of g.(1)(c) Find g-'(x), stating its domain.(3) 相关知识点: 试题来源: 解析 (a)Way 1: g(5)=(2(5)+5)/(5-3)=7.5=g(5)=(2(7...
x451ea 1 answer Answer this Question Lukas T · 4 months ago Yes, USB32HD2 is compatible with the Asus Vivobook 14 X415EA. Lukas, StarTech.com Support Helpful? Yes · 1 No · 1 Report Bob10 · 4 months ago Does this work with the Lenovo IDEAPAD 115ALC7 in order to add...
1. 实现道岔的精确控制:通过对控制线路的操作,可以实现对道岔的精确控制,确保道岔的开通方向正确,避免出现误操作和事故。 2. 实现道岔的远程管理:5线制道岔x1x2x3x4x5的控制方式可以实现对道岔的远程管理,避免了人工操作的繁琐和...
∵f(x)不为常值函数∴∃a≠b使得f(a)≠f(b)又由f(2x)=f(x)知：∀n∈N,f(a2n)=f(a),f(b2n)=f(b)又由limn→∞a2n=0及f(x)的连续性知：f(0)=f(a)同理由limn→∞b2n=0知：f(0)=f(b)≠f(a) 矛盾！故定义域里不能有0，又由连续性知：...
Answer ALL questions. Writ e your answers in th e spaces provided.1.f(x)=2x^3-5x^2+ax+ a Given that (x + 2) is a factor of f(x), find th e valu e of th e constant a.(3) e 相关知识点: 试题来源: 解析 Sets f(-2)=0⇒2*(-2)^3-5*(-2)^2+a*-2+a=0Solve...
导出倍数：0.5x、0.75x、1x、2x、3x、4x、512w、512h 导出格式：PNG、JPEG、SVG、PDF 批量导出切...
问UIImage 1x、2x、3x分辨率最佳实践EN我已经完成了我的第一个iOS应用程序的编码，我打算提交给应用...
Answer to: Factorise the polynomial f(x) = 2x^3 +15x^2+3x-72 , if f(-3) = 0 . By signing up, you'll get thousands of step-by-step solutions to your...
Answer to: Find the following integral: integral of (2x^2 - x + 4)/(x^3 + 4x) dx. By signing up, you'll get thousands of step-by-step solutions to...