The function f(x)= ^ 4 x+ ^ 4 x is increasing if

Mathematics · JEE Main · NTA Exams — Limit, Continuity and Differentiability

1. \(0
2. \(\pi / 4<\mathrm{x}<3 \pi / 8\)
3. \(3 \pi / 8
4. \(\frac{5 \pi}{8}

Answer

(B) / 4< x <3 / 8

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