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Question 49

Mathematics Sequence And Series Hard

The sum of the first 40 terms of the series -1<sup>2</sup> + 2<sup>2</sup> - 3<sup>2</sup> + 4<sup>2</sup> - ... is:

(A) 360

(B) 400

(C) 820

(D) 440

✓ Correct Answer: Option C Verified Solution

📘 Step-by-Step Solution & Detailed Explanation:

Correct Option is C. Practice regular variations of this Sequence And Series concept to build speed and accuracy.

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