Mathematics
Senior High
Resolved
数3積分です
矢印のところはなぜこうなるのですか？？
(3) √
πT
cos³ x dx
301
=
=
S
πT
πT
cos² x ⋅ cos x dx
-(1-sin² x) - (sin x)' dr
= [sin x - sin³]
4/03
= (0-0) - (03-03)
= 0
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