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Web1. (a) f (x) = 4 + (x − 2) 4 x ∈ R, f ′(x) = 4(x − 2) 3 x ∈ R. We note that f (1) = 5 and f ′(1) = −4. Tangent line at (1, 4) has equation y − 5 = −4(x − 1) y = 9 − 4 x. (b) f (x) = 2 sin(πx) x ∈ R f ′(x) = 2 cos(πx)(π) = 2π cos(πx) x ∈ R. We note that f ′(1) = 0 and f ′(1) = − 2 π. WebSo I'm trying to solve the following equation for x: sqrt(x+3)-sqrt(2x+4)+1=0 From what I can find, the solution is x = 6. Wolfram alpha and my textbook support this. ... 1: sqrt(x+3)-sqrt(2x+4)+1=0 2: subtract 1 and add sqrt(2x+4) which results in sqrt(x+3)=-1+sqrt(2x+4) 3: square both sides which results in x+3=-2(sqrt(2x+4)) ... small business attorney northern virginia

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Web∇a(x,y) = (1,2y)(x,y), ∇h(x,y) = (2x,4y3)(x,y). The method of Lagrange multipliers indicates that we must solve the system, 1 = λ·2x, 2y = λ·4y3, x2 +y4 = 1. [3 points] From the first equation, we see that x ̸= 0, λ = 1 2x 0. For the second equation, we split into two cases: Web1.已知a、b∈R,比较 a +0.5 b 与√2·√ ab 的大小2.已知0＜x＜0.5,求x取何值时,x(1-2x)的值最大3.已知a＞0,求证a+a³≥2a².1) a 与 大家查题吧 2000万题库，覆盖所有考试类目，免费查题 Web下列命题：①∃x∈{x x是无理数}，x2是有理数．②∀x∈R，x3＞x2③∃x∈R，x2-2x+1≤0④∀x＜2，x＜1其中真命题的个数是（）A．0B．1C．2D．3是由字典问答网整理的关于问题描述的问题及答案。了解更多教育知识敬请关注字典问答网，也欢迎广大网友随时提问 … small business attorney denver co