Avaliação de Cálculo III
Quiz
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Mathematics
•
University
•
Medium
Sonia Maria
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A derivada direcional da função f(x,y) = 3x2 + 4y no ponto (1,2) na direção do vetor v = ( 3, - 1) é:
8,43
4,43
5,43
3,44
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcule a derivada direcional da função f(x,y) = x2y + y3 no ponto (1,1) na direção do vetor v = (2, 2):
10
12
16
14
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A equação cartesiana para a equação polar r = 2 cos θ - 4 sen θ.
x2 + y2 = 2x + 4y
x2 + y2 = 2x2 + 4y
x2 + y2 = 2x + y4
x2 + y2 = 2x - 4y
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual é a equação cartesiana para a equação polar r = 3 sen θ + 5 cos θ?
x2 + y2 = 5y - 3x
x2 + y2 = 3x + 5y
x2 + y2 = 3y + 5x
x2 + y2 = 5x - 3y
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Seja f(x) = e-2x , calcule y' .
y' = -2.e-2
y' = 2.e-2
y' = 2.e-2/3
y' = -2.e-2/5
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Seja f(x) = ln(x2 + 1), calcule y' .
y' = 1/(x2 + 1)
y' = 2/(x2 + 1)
y' = x/(x2 + 1)
y' = 2x/(x2 + 1)
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
6/7
8/7
7/6
7,6
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