Tolong bantu no 1 dan 3

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Tolong bantu no 1 dan 3​

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Penjelasan dengan langkah-langkah:

1)

f(x) =  {u}^{n}  \\ f(x) = n. {u}^{n - 1} .

f(x) = ( {2 {x}^{2} + 5) }^{6}  \\ f(x) = 6(2 {x}^{2}  + 5) ^{5} (4x) \\  = 24x( {2 {x}^{2}  + 5)}^{5}

2)

u = 3x-1

= 3

v = x+2

v = 1

f(x) =  \frac{v - uv}{ {v}^{2} }

 =  \frac{3(x + 2) - (3x - 1)(1)}{( {x + 2)}^{2} }  \\  =  \frac{3x + 6 - 3x + 1}{ ( {x + 2)}^{2} }  \\  =  \frac{7}{( {x + 2)}^{2} }

atau dijabarkan

 =  \frac{7}{ {x}^{2} + 4x + 4 }


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