Saved Bookmarks
| 1. |
Jika f(x)=x(x+) maka tentukana.f(3+f(1)b.f(5)-f(4) |
|
Answer» f(x) = x (x + 3)To find: a. f(3) + f(1), b. f(5) - f(4)Solution:First we find the functional value at x = 3, x = 1, x = 5 and x = 4f(3) = 3 (3 + 3) = 3 (6) = 18f(1) = 1 (1 + 3) = 1 (4) = 4f(5) = 5 (5 + 3) = 5 (8) = 40f(4) = 4 (4 + 3) = 4 (7) = 28Now, f(3) + f(1) = 18 + 4 = 22and f(5) - f(4) = 40 - 28 = 12Answer: f(3) + f(1) = 22 f(5) - f(4) = 12 |
|