Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Mathematics Relations and Functions Composition of Functions

Let f, g : R → R be two functions defined as f(x) = |x| + x and g(x) = |x| - x ∀ x ∈ R. The (fog) (x) for x < 0 is

1
0
2
4x
3
-4x
4
2x
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