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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 4 · Set 1 · Q8
If f ( x )= {3 x -2, 0< x ≤ 1; 2 x^2+ ax, 1< x <2} is continuous for x ∈(0,2), then a is equal to:
If $\displaystyle \mathrm{f}(\mathrm{x})=\left\{\begin{array}{cc}3 \mathrm{x}-2, & 0<\mathrm{x} \leq 1 \\ 2 \mathrm{x}^{2}+\mathrm{ax}, & 1<\mathrm{x}<2\end{array}\right.$ is continuous for $\displaystyle \mathrm{x} \in(0,2)$, then a is equal to :
Official answer
(D)
$\displaystyle -1$
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CBSE Class 12 Mathematics past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.