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Lista 2 - Derivadas - Minerva.ufpel.tche.br

Lista 2 - Derivadas - Minerva.ufpel.tche.br

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<strong>Lista</strong> 2 - <strong>Derivadas</strong><<strong>br</strong> />

1) Determinar a equação da reta tangente às seguintes curvas, nos pontos indicados.<<strong>br</strong> />

a) f(x) = x² - 1 ; x = 1, x = 0, x = a, a ∈ R.<<strong>br</strong> />

b) f(x) = x(3x – 5 ); x = ½, x = a , a ∈ R.<<strong>br</strong> />

2) Encontrar as equações das retas tangente e normal à curva y = x² - 2x + 1 no ponto<<strong>br</strong> />

(-2,9).<<strong>br</strong> />

3) Usando a definição, determinar a derivada das seguintes funções:<<strong>br</strong> />

a) f(x) = 1 – 4x²<<strong>br</strong> />

b) f(x) =<<strong>br</strong> />

1<<strong>br</strong> />

2x<<strong>br</strong> />

−1<<strong>br</strong> />

4) Nos exercícios abaixo encontrar a derivada das funções dadas.<<strong>br</strong> />

a) f(r) = π r²<<strong>br</strong> />

b) f(x) = 14 – ½ x –3<<strong>br</strong> />

c) f(x) = ( 3x 5 – 1) ( 2 – x 4 )<<strong>br</strong> />

d) f(x) = 7(ax² + bx + c )<<strong>br</strong> />

e) f(t) =<<strong>br</strong> />

3t²<<strong>br</strong> />

+ 5t<<strong>br</strong> />

−1<<strong>br</strong> />

t −1<<strong>br</strong> />

f) f(s) = ( s² - 1 ) ( 3s-1 ) ( 5s² + 2s )<<strong>br</strong> />

g) f(t) =<<strong>br</strong> />

2 − t²<<strong>br</strong> />

t − 2<<strong>br</strong> />

h) f(x) = ½ x 4 + 2/x 6<<strong>br</strong> />

5) Calcular a derivada.<<strong>br</strong> />

a) f(x) = 10 ( 3x² + 7x +3 )10


) f(x) = 3 3x<<strong>br</strong> />

² 6 2)²<<strong>br</strong> />

( + x −<<strong>br</strong> />

7x²<<strong>br</strong> />

c) f(x) = + 3x<<strong>br</strong> />

+ 1<<strong>br</strong> />

5 2(<<strong>br</strong> />

3x<<strong>br</strong> />

+ 1)<<strong>br</strong> />

3x² + 6x + 7<<strong>br</strong> />

d) f(x) = 2e<<strong>br</strong> />

3x<<strong>br</strong> />

a<<strong>br</strong> />

6<<strong>br</strong> />

e) f(x) = 3x<<strong>br</strong> />

² − x<<strong>br</strong> />

b<<strong>br</strong> />

In(a + bs)<<strong>br</strong> />

f) f(s) = ½ (a+bs)<<strong>br</strong> />

g) f(x) = sen³(3x² + 6x)<<strong>br</strong> />

h) f(t) =<<strong>br</strong> />

e<<strong>br</strong> />

e<<strong>br</strong> />

t<<strong>br</strong> />

t<<strong>br</strong> />

−1<<strong>br</strong> />

+ 1<<strong>br</strong> />

i) f(x) = 1/a (bx² + c) – Inx<<strong>br</strong> />

j) f(x) = sen² x + cos² x<<strong>br</strong> />

k) f(x) = e 2x cos 3x<<strong>br</strong> />

l) f(x) = sen² (x/2)cos² (x/2)<<strong>br</strong> />

m) f(x) = log2 ( 3x – cos 2x )<<strong>br</strong> />

2 cos 2t<<strong>br</strong> />

n) f(t) = e<<strong>br</strong> />

6) Nos exercícios abaixo calcular as derivadas sucessivas até a ordem n indicada.<<strong>br</strong> />

a) y = 3x 4 – 2x; n=5<<strong>br</strong> />

b) y = 1/e x ; n = 4

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