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Pertanyaan

V o l u m e space b e n d a space p u t a r space d a r i space d a e r a h space y a n g space d i b a t a s i space o l e h space k u r v a space y equals 3 x space d a n space y equals x squared space y a n g space d i p u t a r space  m e n g e l i l i n g i space s u m b u space X space s e j a u h space 360 degree a d a l a h....

  1. 62 over 5 straight pi space satuan space volume

  2. 63 over 3 straight pi space satuan space volume

  3. 162 over 5 straight pi space satuan space volume

  4. 98 over 3 straight pi space satuan space volume

  5. 262 over 5 straight pi space satuan space volume

F. Pratama

Master Teacher

Mahasiswa/Alumni Universitas Putra Indonesia YPTK Padang

Jawaban terverifikasi

Pembahasan

P e r t a m a minus t a m a space c a r i space t i t i k space p o t o n g space a n t a r a space g a r i s space d a n space k u r v a space  y equals y  x squared equals 3 x  x squared minus 3 x equals 0  x left parenthesis x minus 3 right parenthesis equals 0  x equals 0 space a t a u space x equals 3    M a k a space v o l u m e space d a e r a h space t e r s e b u t space a d a l a h  straight pi integral subscript 0 superscript 3 left parenthesis left parenthesis 3 straight x right parenthesis squared minus left parenthesis straight x squared right parenthesis squared right parenthesis space dx  straight pi integral subscript 0 superscript 3 left parenthesis 9 straight x squared minus left parenthesis straight x to the power of 4 right parenthesis space dx  right enclose straight pi integral subscript 0 superscript 3 open parentheses 3 straight x cubed minus 1 fifth straight x to the power of 5 space close parentheses space end enclose subscript 0 superscript 3 equals straight pi open parentheses 81 minus 242 over 5 close parentheses equals 162 over 5 straight pi space satuan space volume

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Volume daerah yang dibatasi kurva y=2x2 dan y = 4x bila diputar mengelilingi sumbu X sejauh 360∘ adalah.....

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