The largest interval among the following for which x 12 – x 9 + x 4 – x + 1 > 0 is

Mathematics · JEE Main · NTA Exams — Sets, Relations and Functions

1. – 4 < x < 0
2. 0 < x < 1
3. – 100 < x < 100
4. –∞ < x < ∞

Answer

(D) – ∞ ∞

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