Mathematics
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答えは3x^2-4xです!よろしくお願いします!!

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微分積分 積分 定積分

Answers

✨ Best Answer ✨

f(x)=3x²+4x∫f(t)dt
∫f(t)dt=aとおく。
f(x)=3x²+4xa
f(t)=3t²-4ta
∫f(t)dt=∫3t²-4ta
=[t³-2t²a]=1-2a
∫f(t)dt=aより
1-2a=a
a=1/3
よって
f(x)=3x²+4x/3

のり天

ありがとうございます!!!

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