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Mathematics · 2026 · 1 mark
CBSE 2026 · Region 4 · Set 3 · Q16
If sum of first ten terms of an A.P. is zero with a as the first term and d, the common difference, which of the following relation is true ?
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle \mathrm{a}_{10}=-\mathrm{a}$
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CBSE Class 10 Mathematics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.