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| 1. |
If f : R → R is given by f(x) = 2x + |x|, then f(2x) + f(–x) + 4x = _______________. |
| Answer» If f : R → R is given by f(x) = 2x + |x|, then f(2x) + f(–x) + 4x = _______________. | |