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kokoszzm 2022-06-24 Answered
Calculate 4 7 f ( x ) f ( 2 x ) d x
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Answers (2)

g2joey15
Answered 2022-06-25 Author has 21 answers
You are absolutely correct. When x ( 4 , 7 ), you have that 2 x ( 8 , 14 ), which means that f ( x ) f ( 2 x ) = 0 for x ( 4 , 7 ). This implies that 4 7 f ( x ) f ( 2 x ) d x = 0
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April Bush
Answered 2022-06-26 Author has 6 answers
First of all you have to calculate f ( 2 x )
f ( 2 x ) = { 2 x 4 2 x < 7 0 o t h e r w i s e
f ( 2 x ) = { 2 x 2 x < 7 2 0 o t h e r w i s e
4 7 f ( x ) f ( 2 x ) d x = 4 7 x × 0. d x = 4 7 0. d x = 0
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