15 Solve the simultaneous equations.4x-3y=2y=2x+1Answer X =-2.5y=-4[3] 相关知识点: 试题来源: 解析 -2.5-44x-3y=2 -(1)y=2x+1 -(2)Sub(2)into(1),4x-3(2x+1)=24x-6x-3=2-2x=5x=-2.5Subx=-2.5into(2),y=2(-2.5)+1y=-4 ...
x3cos(y)=2x3y4 We differentiae the above equation with respect to x and after...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough homework and study questions. Ask a question Search AnswersLe...
Answer and Explanation:1 We solve foryin the equation2x+3y=4 $$\begin{align} 2x + 3y &=... Learn more about this topic: Solving Equations Using the Addition Principle from Chapter 8/ Lesson 11 60K When solving equations using the addition principle, addition or subtraction done on one ...
1. The curve C has the equation 2x+3y^2+3x^2y=4x^2 .The point P on the curve has coordinates (-1, 1).(a) Find the gradient of the curve at P.(5)(b)Hence find the equation of the normal to C at P. giving your answer in the form ax+by+ c = 0. where a, b and c...
B4:D4,B7:D7)设定规划求解如下图（保留目标为空），点击Solve.这个有多组解满足2x+3Y+4Z=19. ...
(x-3)→ye-3y-2x+5→y2x-2x-3y+5x(y2)=3y|5⇒x=(3y-5)/(y-2)(0.9y=(3x+5)/(x-2))g^(-1)(x)-(3x+5)/(x-2),2x≤(15)/2Way 2: y-(2x+6-11)/(x-3)→y-2+(11)/(x-3)→y-2-(11)/(x-3)x-3=(11)/(y-2)⇒x=(11)/(y-2)+3(0+y)=(11)/(x-2)+...
得z2=4x2+9x2≥24x2⋅9x2=12,进而z≥23.x^2y(4x+3y)=3，令2x+3y=kx^2(k-2x)(k+2x)...
2. 2x⋅3y=6xy3. −3y⋅2x=−6xy4. −3y⋅3y=−9y2 Putting these together, we have: 4x2+6xy−6xy−9y2 Step 4: Combine like termsNotice that 6xy and −6xy cancel each other out: 4x2−9y2 Final AnswerThe simplified expression is: 4x2−9y2 --- Show More ...
10 The plane p has equation 2x -3y+ 6z= 16. The plane q is parallel to p and contains the point with position vector i +4j+2k.(i) Find the equation of q, giving your answer in the form ax + by +cz = d.[2](ii) Calculate the perpendicular distance between p and q.[3] ...
因此构造拉格朗日函数：L= \frac{1}{13} (2x+3y-6)^2+\lambda (x^2+4y^2-4)\text{令}\...