For the Given Statement $P_{n}$ , Write the Statements $P_{1}, P_{k}$

question 104

Essay

For the given statement $P_{n}$ , write the statements $P_{1}, P_{k}$ , and $P_{k+1}$
- $$1 ^ { 2 } + 2 ^ { 2 } + 3 ^ { 2 } + \ldots + n ^ { 2 } = \frac { n ( n + 1 ) ( 2 n + 1 ) } { 6 }$$

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