題組內容
2. Answer the following questions:
2.7 For the function \( f(x, y) = \sin x + \cos y \), the Taylor polynomial of degree 2 centered at \( (x, y) = (0, 0) \) is \( \underline{\quad (10\%)} \).
2. Answer the following questions:
2.7 For the function \( f(x, y) = \sin x + \cos y \), the Taylor polynomial of degree 2 centered at \( (x, y) = (0, 0) \) is \( \underline{\quad (10\%)} \).