Mathematics
Senior High
Solved
?の所の式変形が、何故そうなるのか分かりません!
教えてください🙇♀️
(1)Sf(t)dt=a とおくと
よって
f(x)=3x²-x + a
* S₁ f(t)dt="₂ (3+²-t+a)dt
ゆえに
2/11
=2√ (31² + a) dt
1
= 2 [t³ + at ] = 2(1+a)
10
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Answers
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