Mathematics
Senior High

②の答えは合ってますか?

また、①で回答が終わっても正解ですか?

An= ( 12/2²n-1²121) × ₂²² x2n 2m 0₁ = ²/1h (n-₁) O Jxa" 2²x₂²²-1 J L= 2^-1 (n-1) ·(n-1)
数b 数列

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