函数算术练习题在线| BrilliantgydF4y2Ba

假设gydF4y2Ba $\{对齐}开始f (x) & = 4 x ^ 2 - 9, \ \ g (x) & = 3 x + 7 \ \ h (x) & = f (x) + g (x)。结束\{对齐}gydF4y2Ba$ 价值是什么gydF4y2Ba $h (3)gydF4y2Ba$ ？gydF4y2Ba

考虑到功能gydF4y2Ba $\{对齐}开始f (x)和x + 7 = 5, \ \ g (x) & = 2 - 3。结束\{对齐}gydF4y2Ba$ 价值是什么gydF4y2Ba $f (6) \ cdot g (1)gydF4y2Ba$ ？gydF4y2Ba

给定两个函数gydF4y2Ba $F (x) = 2x + 1， \ 4 g(x) = -x - 2，gydF4y2Ba$ 如果gydF4y2Ba $H (x) = f(x) + g(x) \四k(x) = f(x) - g(x)gydF4y2Ba$ 价值是什么gydF4y2Ba $h (2) \ cdot k (1) ?gydF4y2Ba$

考虑到功能gydF4y2Ba $\{对齐}开始f (x) & = 3 x + 1 \ \ g (x) & = x + \压裂{1}{3}。结束\{对齐}gydF4y2Ba$ 如果gydF4y2Ba $\{对齐}开始h (x) & = f (x) + g (x) \ \ k (x) & = \压裂{g (x)} {f (x)},结束\{对齐}gydF4y2Ba$ 价值是什么gydF4y2Ba $xgydF4y2Ba$ 令人满意的gydF4y2Ba $H (x) - k(x) = 5?gydF4y2Ba$

1gydF4y2Ba

\压裂{1}{2}gydF4y2Ba

2gydF4y2Ba

0gydF4y2Ba

假设gydF4y2Ba $\{对齐}开始f (x) & = 6 x + 7 \ \ g (x) & = 3 - 3。结束\{对齐}gydF4y2Ba$ 价值是什么gydF4y2Ba $f (6) \ cdot g (2)gydF4y2Ba$ ？gydF4y2Ba

概念测试gydF4y2Ba

挑战测验gydF4y2Ba

函数运算gydF4y2Ba