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Lu a s d a er ah y an g d iba t a s i o l e h k u r v a y = − x 2 + 3 x , s u mb u X , g a r i s x = 6 , d an x = 3 a d a l ah .....

  1. 4 1 half space s a t u a n space l u a s

  2. 13 1 half space s a t u a n space l u a s

  3. 18 space s a t u a n space l u a s

  4. 22 1 half space s a t u a n space l u a s

  5. 27 space s a t u a n space l u a s

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A. Acfreelance

Master Teacher

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P e r h a t i k a n space g a m b a r space y a n g space t e r b e n t u k space o l e h space k u r v a space y equals negative x squared plus 3 x comma space s u m b u space X comma space g a r i s space x equals 6 space d a n space g a r i s space x equals 3 space b e r i k u t space colon

D a r i space g a m b a r space t e r l i h a t space l u a s space d a e r a h space y a n g space a k a n space d i c a r i space b e r a d a space d i space b a w a h space s u m b u space X comma space m a k a space l u a s n y a

M e n g h i t u n g space l u a s space d a e r a h space d e n g a n space i n t e g r a l comma space  integral subscript b a t a s space k i r i end subscript superscript b a t a s space k a n a n end superscript k u r v a space a t a s minus k u r v a space b a w a h    M a k a  L equals negative integral subscript 3 superscript 6 left parenthesis negative x squared plus 3 x right parenthesis d x space  L equals right enclose negative space open parentheses negative 1 third x cubed plus 3 over 2 x squared close parentheses space end enclose subscript 3 superscript 6  L equals negative open parentheses negative 1 third left parenthesis 6 right parenthesis cubed plus 3 over 2 left parenthesis 6 right parenthesis squared close parentheses minus open parentheses negative 1 third left parenthesis 3 right parenthesis cubed plus 3 over 2 left parenthesis 3 right parenthesis squared close parentheses  L equals negative open parentheses negative 72 plus 54 close parentheses minus open parentheses negative 9 plus 27 over 2 close parentheses  L equals negative open parentheses negative 18 minus 9 over 2 close parentheses  L equals 45 over 2 equals 22 1 half  J a d i space l u a s space d a e r a h space t e r s e b u t space a d a l a h space 22 1 half space s a t u a n space l u a s

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Misalkan D adalah daerah yang dibatasi oleh sumbu-y, garis y = 4, dan kurva y = x 2 . Jika garis y = k membagi dua daerah D sama besar, maka k 3 = ....

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