Q. Calculate ∫ from 0 to 1 of (x^2 + 4x + 4) dx.
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Solution
The integral evaluates to [x^3/3 + 2x^2 + 4x] from 0 to 1 = (1/3 + 2 + 4) = 25/3.
Correct Answer: C — 5
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Q. Calculate ∫ from 0 to 1 of (x^4 - 2x^2 + 1) dx.
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Solution
The integral evaluates to [x^5/5 - 2x^3/3 + x] from 0 to 1 = (1/5 - 2/3 + 1) = (15/15 - 10/15 + 3/15) = 8/15.
Correct Answer: D — 2/3
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Q. Calculate ∫ from 0 to 1 of (x^4 - 2x^3 + x^2) dx.
A.
0
B.
1/5
C.
1/3
D.
1/2
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Solution
The integral evaluates to [x^5/5 - (2/4)x^4 + (1/3)x^3] from 0 to 1 = (1/5 - 1/2 + 1/3) = 1/30.
Correct Answer: B — 1/5
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Q. Calculate ∫ from 0 to 2 of (x^3 - 3x^2 + 4) dx.
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Solution
The integral evaluates to [x^4/4 - x^3 + 4x] from 0 to 2 = (4 - 8 + 8) - 0 = 4.
Correct Answer: C — 6
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Q. Calculate ∫ from 0 to π of sin(x) dx.
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Solution
The integral evaluates to [-cos(x)] from 0 to π = [1 - (-1)] = 2.
Correct Answer: C — 2
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Q. Calculate ∫ from 0 to π/2 of sin(x) cos(x) dx.
A.
1/2
B.
1
C.
π/4
D.
π/2
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Solution
Using the identity sin(2x) = 2sin(x)cos(x), the integral becomes 1/2 ∫ from 0 to π/2 of sin(2x) dx = 1/2 [-1/2 cos(2x)] from 0 to π/2 = 1/2 [0 - (-1/2)] = 1/4.
Correct Answer: A — 1/2
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Q. Calculate ∫ from 0 to π/2 of sin^2(x) dx.
A.
π/4
B.
π/2
C.
π/3
D.
π/6
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Solution
Using the identity sin^2(x) = (1 - cos(2x))/2, the integral evaluates to π/4.
Correct Answer: A — π/4
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Q. Calculate ∫ from 1 to 3 of (2x + 1) dx.
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Solution
The integral evaluates to [x^2 + x] from 1 to 3 = (9 + 3) - (1 + 1) = 10.
Correct Answer: B — 6
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Q. Calculate ∫_0^1 (4x^3 - 3x^2 + 2) dx.
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Solution
∫_0^1 (4x^3 - 3x^2 + 2) dx = [x^4 - x^3 + 2x] from 0 to 1 = (1 - 1 + 2) - (0) = 2.
Correct Answer: B — 2
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Q. Calculate ∫_0^1 (e^x) dx.
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Solution
∫_0^1 e^x dx = [e^x] from 0 to 1 = e - 1.
Correct Answer: A — e - 1
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Q. Calculate ∫_0^1 (x^3 - 2x^2 + x) dx.
A.
-1/12
B.
0
C.
1/12
D.
1/6
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Solution
The integral evaluates to [x^4/4 - 2x^3/3 + x^2/2] from 0 to 1 = (1/4 - 2/3 + 1/2) = 1/12.
Correct Answer: C — 1/12
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Q. Calculate ∫_0^π/2 cos^2(x) dx.
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Solution
∫_0^π/2 cos^2(x) dx = π/4.
Correct Answer: A — π/4
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Q. Calculate ∫_1^e (ln(x)) dx.
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Solution
∫_1^e ln(x) dx = [x ln(x) - x] from 1 to e = (e - e) - (1 - 1) = 1.
Correct Answer: B — e - 1
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Q. Calculate ∫_1^e (ln(x))^2 dx.
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Solution
Using integration by parts, the integral evaluates to 1.
Correct Answer: B — 2
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Q. Determine if the function f(x) = x^3 - 3x + 2 is differentiable at x = 1.
A.
Yes
B.
No
C.
Only from the left
D.
Only from the right
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Solution
f(x) is a polynomial function, which is differentiable everywhere, including at x = 1.
Correct Answer: A — Yes
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Q. Determine if the function f(x) = { x^2, x < 0; 1/x, x > 0 } is continuous at x = 0.
A.
Yes
B.
No
C.
Depends on limit
D.
None of the above
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Solution
The left limit is 0 and the right limit is undefined. Thus, f(x) is not continuous at x = 0.
Correct Answer: B — No
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Q. Determine if the function f(x) = { x^2, x < 1; 3, x = 1; 2x, x > 1 } is continuous at x = 1.
A.
Continuous
B.
Not continuous
C.
Depends on k
D.
None of the above
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Solution
At x = 1, f(1) = 3, but lim x->1- f(x) = 1 and lim x->1+ f(x) = 2. Thus, it is not continuous.
Correct Answer: B — Not continuous
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Q. Determine if the function f(x) = { x^2, x < 1; x + 1, x >= 1 } is continuous at x = 1.
A.
Yes
B.
No
C.
Depends on x
D.
None of the above
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Solution
Both sides equal 2 at x = 1, hence it is continuous.
Correct Answer: A — Yes
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Q. Determine if the function f(x) = |x - 1| is differentiable at x = 1.
A.
Yes
B.
No
C.
Only from the left
D.
Only from the right
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Solution
The left-hand derivative is -1 and the right-hand derivative is 1. Since they are not equal, f(x) is not differentiable at x = 1.
Correct Answer: B — No
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Q. Determine the area between the curves y = x^3 and y = x from x = 0 to x = 1.
A.
1/4
B.
1/3
C.
1/2
D.
1/6
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Solution
The area is given by the integral from 0 to 1 of (x - x^3) dx. This evaluates to [x^2/2 - x^4/4] from 0 to 1 = (1/2 - 1/4) = 1/4.
Correct Answer: A — 1/4
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Q. Determine the area enclosed by the curves y = x^2 and y = 4.
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Solution
The area enclosed is found by integrating from -2 to 2: ∫(from -2 to 2) (4 - x^2) dx = [4x - x^3/3] from -2 to 2 = (8 - 8/3) - (-8 + 8/3) = 16/3.
Correct Answer: C — 16/3
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Q. Determine the area under the curve y = 1/x from x = 1 to x = 2.
A.
ln(2)
B.
ln(1)
C.
ln(2) - ln(1)
D.
ln(2) + ln(1)
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Solution
The area under the curve y = 1/x from x = 1 to x = 2 is given by ∫(from 1 to 2) (1/x) dx = [ln(x)] from 1 to 2 = ln(2) - ln(1) = ln(2).
Correct Answer: A — ln(2)
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Q. Determine the area under the curve y = e^x from x = 0 to x = 1.
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Solution
The area under the curve y = e^x from 0 to 1 is given by ∫(from 0 to 1) e^x dx = [e^x] from 0 to 1 = e - 1.
Correct Answer: A — e - 1
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Q. Determine the continuity of f(x) = { 1/x, x != 0; 0, x = 0 } at x = 0.
A.
Continuous
B.
Not continuous
C.
Depends on limit
D.
None of the above
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Solution
The limit as x approaches 0 does not exist, hence f(x) is not continuous at x = 0.
Correct Answer: B — Not continuous
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Q. Determine the continuity of f(x) = { x^2 - 1, x < 1; 3, x = 1; 2x, x > 1 } at x = 1.
A.
Continuous
B.
Discontinuous
C.
Depends on x
D.
Not defined
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Solution
The left limit is 0, the right limit is 2, and f(1) = 3. Thus, it is discontinuous.
Correct Answer: B — Discontinuous
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Q. Determine the continuity of the function f(x) = { x^2, x < 1; 2x - 1, x >= 1 } at x = 1.
A.
Continuous
B.
Not continuous
C.
Depends on the limit
D.
Only left continuous
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Solution
The left limit as x approaches 1 is 1, and the right limit is also 1. Thus, f(1) = 1, making it continuous.
Correct Answer: A — Continuous
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Q. Determine the critical points of f(x) = x^3 - 3x + 2.
A.
-1, 1
B.
0, 2
C.
1, -2
D.
2, -1
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Solution
Setting f'(x) = 3x^2 - 3 = 0 gives x^2 = 1, so critical points are x = -1 and x = 1.
Correct Answer: A — -1, 1
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Q. Determine the critical points of f(x) = x^3 - 3x^2 + 4.
A.
(0, 4)
B.
(1, 2)
C.
(2, 1)
D.
(3, 0)
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Solution
f'(x) = 3x^2 - 6x. Setting f'(x) = 0 gives x = 0 and x = 2. Critical points are (0, 4) and (2, 1).
Correct Answer: B — (1, 2)
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Q. Determine the critical points of f(x) = x^3 - 6x^2 + 9x.
A.
x = 0, 3
B.
x = 1, 2
C.
x = 2, 3
D.
x = 1, 3
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Solution
Setting f'(x) = 0 gives critical points at x = 0 and x = 3.
Correct Answer: A — x = 0, 3
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Q. Determine the critical points of f(x) = x^4 - 4x^3 + 6.
A.
x = 0, 3
B.
x = 1, 2
C.
x = 2, 3
D.
x = 1, 3
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Solution
Setting f'(x) = 0 gives critical points at x = 1 and x = 2.
Correct Answer: B — x = 1, 2
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