∫(x²-a²)dx=1/3x³-a²x|
將∫上面的數(shù)代入計(jì)算得到第一個(gè)結(jié)果
代入下面的數(shù)得到第二個(gè)結(jié)果
第一個(gè)減去第二個(gè)即是答案不對(duì)啊,是1/(x²-a²)啊,你看錯(cuò)了∫1/(x²-a²)dx
=[ln|(x-a)/(x+a)|]/2a+c
回復(fù)晚了-_-||
∫dx/(x^2-a^2)
∫dx/(x^2-a^2)
只會(huì)做到這一步∫1/(x-a)(x+a)dx
只會(huì)做到這一步∫1/(x-a)(x+a)dx
數(shù)學(xué)人氣:920 ℃時(shí)間:2020-05-19 16:43:13
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