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Diketahui f ( x ) = − 3 x 4 + 3 x 3 + x 2 + x + 6 , maka nilai dari f ( 0 ) = ....

Diketahui , maka nilai dari  

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W. Lestari

Master Teacher

Mahasiswa/Alumni Universitas Sriwijaya

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nilai .

nilai f apostrophe open parentheses 0 close parentheses equals 1.

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Pembahasan

Ingat kembali sifat-sifat turunan fungsi berikut: Diketahui , maka turunan fungsi adalah: Sehingga: Jadi, nilai .

Ingat kembali sifat-sifat turunan fungsi berikut:

f open parentheses x close parentheses equals a rightwards arrow f apostrophe open parentheses x close parentheses equals 0 f open parentheses x close parentheses equals a x rightwards arrow f apostrophe open parentheses x close parentheses equals a f open parentheses x close parentheses equals a x to the power of n rightwards arrow f apostrophe open parentheses x close parentheses equals a times n times x to the power of n minus 1 end exponent f open parentheses x close parentheses equals u open parentheses x close parentheses plus v open parentheses x close parentheses rightwards arrow f apostrophe open parentheses x close parentheses equals u apostrophe open parentheses x close parentheses plus v apostrophe open parentheses x close parentheses 

Diketahui f open parentheses x close parentheses equals negative 3 x to the power of 4 plus 3 x cubed plus x squared plus x plus 6, maka turunan fungsi f open parentheses x close parentheses adalah:

table attributes columnalign right center left columnspacing 0px end attributes row cell f open parentheses x close parentheses end cell equals cell negative 3 x to the power of 4 plus 3 x cubed plus x squared plus x plus 6 end cell row cell f apostrophe open parentheses x close parentheses end cell equals cell negative 3 times 4 times x to the power of 4 minus 1 end exponent plus 3 times 3 times x to the power of 3 minus 1 end exponent plus 1 times 2 times x to the power of 2 minus 1 end exponent plus 1 plus 0 end cell row cell f apostrophe open parentheses x close parentheses end cell equals cell negative 12 x cubed plus 9 x squared plus 2 x plus 1 end cell end table 

Sehingga:

f apostrophe open parentheses x close parentheses equals negative 12 x cubed plus 9 x squared plus 2 x plus 1 f apostrophe open parentheses 0 close parentheses equals negative 12 open parentheses 0 close parentheses cubed plus 9 open parentheses 0 close parentheses squared plus 2 open parentheses 0 close parentheses plus 1 f apostrophe open parentheses 0 close parentheses equals negative 12 open parentheses 0 close parentheses plus 9 open parentheses 0 close parentheses plus 0 plus 1 f apostrophe open parentheses 0 close parentheses equals 1 

Jadi, nilai f apostrophe open parentheses 0 close parentheses equals 1.

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