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The complete solution set of x forIf(x) + 6-刈=lf(x)I +14-刈+2, given that |
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Answer» For a function to follow |f(x) +g(x)| = |f(x)| +|g(x)| , both the functions must be positive for all the domains inside it. so, here f(x) ≥ 0 , 4-x² ≥ 0 and 2 > 0 ✓ so, 4-x² ≥ 0=> x²≤4 => x belongs to [-2,2] |
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