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Applied Mathematics · 2026 · 3 marks
CBSE 2026 · Central · Set 4 · Q28
(a) Find the intervals in R for which the function f ( x )= x^4-2 x^2 is increasing or decreasing.
(a)
Find the intervals in $\displaystyle \mathbb{R}$ for which the function $\displaystyle \mathrm{f}(\mathrm{x})=\mathrm{x}^4-2 \mathrm{x}^2$ is increasing or decreasing.
OR
(b)
Find : $\displaystyle \int \frac{2 \mathrm{x}+1}{18-4 \mathrm{x}-\mathrm{x}^2} \mathrm{~dx}$
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CBSE Class 12 Applied Mathematics past-paper question from the 2026 board exam. Where our answers come from.