Example 1: Solve the following system of 2x2 equations: x + y = 5 and 2x - 3y = -4. Solution: The given system can be written in the matrix form AX = B where, A = ⎡⎢⎣112−3⎤⎥⎦[112−3], X = ⎡⎢⎣xy⎤⎥⎦[xy], and B = ⎡⎢⎣5−4...
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doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year papers, NEET previous year papers, NCERT books for classes 6 to 12, CBSE, Pathfinder Publications, RD Sharma, RS...
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AB = DC = 6 \text{ and } AD = BC = 5, \angle How to find quadrilateral length of sides from 2 angles? Let abcd be a parallelogram, with m the midpoint of da, and diagonal ac of length 36. let g be the intersection of mb and ac. what is th...
Write the equation 2x - 3y = 6 in slope-intercept form. The Slope-intercept The equation of a line can be stated in different forms, such as the slope-intercept form. When a linear equation is described in the slope-intercept form, it takes the form ofy=mx+c, where the slope ismand...
Use two methods to find PS of: x' = 4x - 3y y' = 3x + 4y x(0) = 1 y(0) = 2 1. By any method, find f_x(x,y) and f_y(x,y) when (x, y) \neq (0,0) Let f(x) = x - 5 and let g(x) = x^2. Find the functi...
⑵冷盆端上来，梁实秋先生说他有糖尿病，不能吃带甜味的熏鱼。“冰糖肘子”端上来，他又说不能碰，因为里面加了冰糖；“什锦炒饭”端上来，他还是说不能吃，因为淀粉会转化为糖。 ⑶最后，端上“八宝饭”，我猜他一定不会碰了，没想到梁先生居然大笑道：“这个我要。”朋友提醒他“里面既有糖又有饭”。
Find the value of y fora given the value of x if y varies directly with x If y = -252 when x = 84, what is y when x=74? What is the value of \sqrt{(196x^3y^5)}? Find the value of a, b, c, and so that: \begin{bmatrix} a & b\ c & d \end{...
(2)x-5y+3y-2x; (3)a3+3a2-5a-4+5a+a2. 知识点3 代数式求值 A. if B. when C. as long as 相关知识点: 试题来源: 解析 解:(1)原式=(3+2-4)a2b=a2b. (2)原式=(1-2)x+(3-5)y=-x-2y. (3)原式=a3+(3+1)a2+(5-5)a-4 =a3+4a2-4.反馈...