Post a New Question

calculus

posted by on .

If x2+xy=10, then when x=2, dy/dx=?

  • calculus - ,

    2x dx + x dy + y dx = 0
    x dy = -(2x+y) dy

    dy/dx = - x/(2x+y)

    when x = 2, y = (10-x^2)/x = 3
    so
    -2/(4+3) = -2/7

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question