please solve my problem and I make you brainlist
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1² + 2² + 3² + ... + 100² = 341700
Explanation:
∴ 1² + 2² + 3² + ... + 100²
= 100 (100 + 1) (2 * 100 + 1) / 6
= 100 * 101 * (200 + 1) / 6
= 100 * 102 * 201 / 6
= 341700
Rule:
If 1² + 2² + 3² + ... + n² be a series, then its sum
= n (n + 1) (2n + 1) / 6
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