Recent content by lisa92

Hi I already created a 4 bit adder but for my assignment I need an 8 bit one. Is it correct if I design to separate 4bit adders and connect their outputs (count) with an AND gate? 4 bit adder: https://www.dropbox.com/s/ao60s6dgtrnhal3/4bit%20adder.PNG

Given that the surface x^8y^7+y^3z^6+z^8x63+6xyz=9 has the equation z=f(x,y) in a neighbourhod of the point (1,1,1) with f(x,y) differentiable, find the derivatives fx(1,1)= fy(1,1)= Attempt: I tried plugging (1,1,1) in fx but it wasnt rigth. We haven't seen this in class and I don't...

Question: Find y as a function of x: x^2 y'' + 8 x y' - 18 y = x^8 y(1)=3, y'(1)=2 Attempted solution: I found the general equation to be Ax^(-9)+Bx^2+Cx^8. However when I try to solve the initial value problem for this equation I have 3 unknowns.