Question

WHO knows how to do double integrals???? I need someone's help

Answer 1

What's the particular problem / what are you having issues with?

Answer 2

If R = [ -1, 3] x [5,7], use a riemann sum with m = 4, n=2 to estimate the value of the \[\iint_R y^2 -2x^2 dA\]. take the sample points to be the upper left corners of the squares

Answer 3

Okay, so draw the rectangle [-1,3] x [5,7]. Divide it into 4 columns and 2 rows (I think,).

Take the top left value of each of these resulting squares and plug them into the equation. Then multiply by the area of the square. DO THIS FOR ALL SQUARES and then sum up the answers.