Recent content by nonaks

  1. N

    Solving the integral of 5e^(t/2)sin(2t)

    Try to let u = e^(t/2) and dv = sin2tdt, then the resulting integral will have a tail Integral (1/2cost(1/2e^(t/2)dt). Use the same process and eventually it will go back to the same integral on the problem. Then just use algebraic technique to solve the problem. Hope it helps. (im still at...
  2. N

    Undergrad Finding extrema of quadratic functions in two variables

    Thank you for the quick reply sir. I haven't read this topic from a book before. It is not covered in our syllabus. This is an open problem given to me by my professor. I'll read more and will post again if i can't figure out the mess.
  3. N

    Undergrad Finding extrema of quadratic functions in two variables

    Good day! Can anyone pls teach me how to find the extrema of this function (general second degree polynomial function): f(x,y)=x^2+4xy+4y^2-2x+3y+6. actually, my problem is i don't know how to find the extrema of functions of this form f(x,y)=ax^2+bxy+cy^2+dx+ey+f. Your help will be highly...
See more