If \( (\vec{a} \times \vec{b}) \times \vec{c} = \vec{a} \times (\vec{b} \times \vec{c}) \), then
Write the simplified form of the Boolean expression \( (A + C)(AD + AD') + AC + C \):
Replace the question mark with an appropriate image to complete the analogous pair.
In the following figure, find the total number of squares.
If \( x^m y^n = (x+y)^{m+n} \), then \( \frac{dy}{dx} \) is