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Double integrals over general regions practice problems

Type I and Type II regions: set the bounds, then integrate. 30 problems with worked solutions; in 30 of them every equation is proved by a computer algebra system.

Evaluate \( \displaystyle \iint_D x^{2} \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.16easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x + y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.17easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 2 x \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = 2 x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.18easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.19easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 2 x \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x^{2} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.20easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 6 x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x^{2} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.21easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x^{2} \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = \sqrt{x} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.22easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = 2 x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.23easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = \sqrt{x} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.24easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 6 x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x^{2} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.25easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 6 x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.27easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 2 x \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.28easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x^{2} \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = 2 x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.29easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 2 x \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.30easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.73easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.74easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 2 x \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = 2 x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.75easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 6 x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = 2 x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.76easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 6 x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = \sqrt{x} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.77easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 6 x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.78easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x^{2} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.79easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D 6 x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = 2 x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.80easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = \sqrt{x} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.81easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x^{2} \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.82easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = \sqrt{x} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.83easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = x^{2} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.84easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = 2 x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.85easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = 2 x \), \( \displaystyle x = 0 \) and \( \displaystyle x = 1 \).
Problem 11.87easy✓ Every equation proved
Evaluate \( \displaystyle \iint_D x^{2} \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = \sqrt{x} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.26medium✓ Every equation proved
Evaluate \( \displaystyle \iint_D x + y \, dA \) where D is bounded by \( \displaystyle y = 0 \), \( \displaystyle y = \sqrt{x} \), \( \displaystyle x = 0 \) and \( \displaystyle x = 2 \).
Problem 11.86medium✓ Every equation proved