Viết lại biểu thức x^2-2x-4y^2-4y dưới dạng chính tắc.

Dec 5, 2012 ... x² + 2x + y² + 4y = 5. dy. -(x+1). 2(13+1). (a) Show that dx 2(1,3. (b) Write an equation for the line tangent to the curve at the point (-2, 1) ... ) Volume = √ √ S (3-3x-241) dy dx. Y=2-2x. = S (3Y-3xY~ ~²) | x - - xxx. O. =S (3x²-6x+3) dx. (x³-3x²+3x) 16 = 1 dx. X. 2. 07. Y=x3 z = 1/2 (6-6x-3×). S = 3-3x- ... Answer to: Use the method of Lagrange multipliers to find the minimum value of f(x,y) = x^2 + 4y^2 - 2x + 8y subject to the constraint x + 2y = 7.... Solve the simultaneous equations x + 4y = 1 and 2x − y = 3. • We can rearrange the first equation for x and substitute into the second equation; x = 1 − 4y so 2 ... 5x2 + 10 = 2x2 - 12x - 2 (Subtract 2x2, and add 12x and 2 to both sides.) ... Input the denominator (x – 4)(x – 2)/(x – 2) = (x – 4) = 0, so x = 4. Report ... ... 2: Now click the button “Submit” to get the equivalent expression. Step 3 ... (x+3), which is called the equivalent expression. Jun 2, 2020 ... x^2 + y^2 = 4(x + y).= x^2 -4x + y^2-4y = 0. (x-2)^2 + ( y-2)^2 = 8 this is a circle with center at 2,2 and r = sqrt 8 max will be 2 + sqrt ... ... x - y = -9 → y = x + 9. 5y + 4(7y - 31) ... x - 2(2) - z = -4 x + z = 0 x - z = 0. 2x = 0 x = 0. 0 + 2 + z = 2 z = 0. REF: 062311aii. 8 ANS: 2. 2x + 4y - 2z = 2. - ... ... two ones you will get x3, x2, or x. d) Using the same reasoning you ... 6) 8(x2 -2)(2x4 + 2x2 + 4). 7) (3x3 + 8)(3x3 – 8). 8) 2(5x2 – 32). Pg 77: 1) (x ... Mar 13, 2017 ... F : R2 → R2, F(x, y) = (0,x). (a) Find all eigenvalues and ... 2x - 4y + 6z. 3x - 6y + 9z.. . (a) Find a basis b = 1u,v, ~wl for ...