Write the integral of a function f(x, y) over the following regions. Do not use a substitution; your integrals should be in one of the forms. ? .? La =? Jy=? f(x, y) dy dx or f(x, y) dx dy. y=? If necessary, you can split up your answer into a sum or difference of multiple integrals. (a) The square given by the inequalities |x| ≤ 1 and |y| ≤ 1. (b) The disk {(x, y) = R² : x² + y² ≤ 1}. (c) A triangle with corners at (-1, 1), (1, 0), and (0, 1). (d) The portion of the square in part (a) satisfying y ≥ 3x² - 1.

Write the integral of a function f(x, y) over the following regions. Do not use a substitution;
your integrals should be in one of the forms
Z ? x=? Z ? y=? f(x, y) dy dx or Z ? y=? Z ? x=? f(x, y) dx dy.
If necessary, you can split up your answer into a sum or difference of multiple integrals.
(a) The square given by the inequalities |x| ≤ 1 and |y| ≤ 1.
(b) The disk {(x, y) ∈ R2: x^2 + y^2 ≤ 1}.
(c) A triangle with corners at (−1, 1), (1, 0), and (0, 1).
(d) The portion of the square in part (a) satisfying y ≥ 3x^2 − 1.