
EKT 2 Kalkulus
Authored by Dadang Sujana
Mathematics
University
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30 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
2.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
-6
0
2
6
8
Answer explanation
To find the limit, substitute x = -4 into the expression. The numerator becomes (-4)^2 - 6(-4) + 8 = 16 + 24 + 8 = 48. The denominator is -4 - 4 = -8. Thus, the limit is 48 / -8 = -6.
3.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
3
1
-1
-3
2
Answer explanation
To find \( \lim_{x\rightarrow3}(2x-5) \), substitute \( x=3 \): \( 2(3)-5 = 6-5 = 1 \). Thus, the limit is 1.
4.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
-1
1
2/3
-1/2
-3/2
Answer explanation
To find the limit as x approaches 1, substitute x=1 into the expression. The numerator becomes 0 and the denominator also becomes 0, indicating an indeterminate form. Factor the expression: (x-1)(x-4)/(x-1)(x+1). Cancel (x-1) and evaluate the limit, yielding -3/2.
5.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
6x-4
3x^2-4
6x-4x
6x^2-4
3x^2-4x
Answer explanation
Untuk menghitung turunan dari f(x)=3x^2-4x+5, gunakan aturan turunan. Turunan dari 3x^2 adalah 6x, dan turunan dari -4x adalah -4. Jadi, turunan f(x) adalah 6x-4, yang merupakan pilihan yang benar.
6.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
12x^2-12x+2
12x^2-12x-2
12x^2-12x
12x^3-12x^2+2
12x^3-12x^2-2
Answer explanation
Untuk menghitung turunan g(x)=4x^3-6x^2+2x-9, gunakan aturan turunan. Turunan dari 4x^3 adalah 12x^2, dari -6x^2 adalah -12x, dari 2x adalah 2, dan turunan dari -9 adalah 0. Jadi, g'(x) = 12x^2 - 12x + 2.
7.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Jika f(x)= x3 + 8x, Carilah f’(c)
3c^2 + 8
c^2 + 8
c^3 + 8
3c^2 - 8
2c^2 + 8
Answer explanation
Untuk mencari f'(c), kita harus menghitung turunan dari f(x) = x^3 + 8x. Turunan f'(x) adalah 3x^2 + 8. Jadi, f'(c) = 3c^2 + 8, yang merupakan pilihan yang benar.
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