The production function f (x,y) = x + y has constant returns to scale
举一反三
- For a function y=f(x),the range of x is called () f(x) A: domain of function B: range of function
- 阅读下面的JavaScript代码 function f(y) { var x = y * y; return x; } for(var x = 0; x < 5; x ++) { y = f(x); document.writeln(y); } 输出结果是
- 阅读下面的JavaScript代码,输出结果是 function f(y) { var x=y*y; return x; } for(x=0;x< 5;x++) { y=f(x); document.writeln(y); } "
- The function Y = f(X,Z) means A: X multiplied by Y equals f. B: Y is determined by both X and C: X + Y = D: none of the above.
- 【单选题】设函数 f ( x , y ) 在 x 2 + y 2 ≤ 1 上连续,使 成立的充分条件是 A. f ( - x , y )= f ( x , y ) f ( x , - y )= - f ( x , y ) B. f ( - x , y )= f ( x , y ) f ( x , - y )= f ( x , y ) C. f ( - x , y )= - f ( x , y ) f ( x , - y )= - f ( x , y ) D. f ( - x , y )= - f ( x , y ) f ( x , - y )= f ( x , y )