اختر إجابة واحدة لكل سؤال. عند الاختيار ستظهر النتيجة فورًا: الأخضر صحيح، والأحمر خطأ، وسيظهر تفسير الإجابة مباشرة إن كان متوفرًا. وبعد آخر سؤال ستظهر الدرجة النهائية تلقائيًا.
The integral of $\frac{4}{\sqrt{1-x^2}}$ dx is 4sin-1x + c.
السؤال 3
النقاط: 1
Find the general antiderivative
تفسير الإجابة
The antiderivative of $\frac{2}{x} - 3\sin x$ is $2\ln|x| - 3\cos x + c$.
السؤال 4
النقاط: 1
Determine m if $\int \frac{x^2}{1+x^m} dx = \frac{1}{3} \tan^{-1}x^3 + c$ where $m \neq 0$
تفسير الإجابة
For the integral to be $\frac{1}{3} \tan^{-1}x^3 + c$, the denominator should be 1+x6. Therefore, m=6.
السؤال 5
النقاط: 1
Find the function f(x) satisfying the given conditions.
تفسير الإجابة
Given $f'(x) = 4\cos x$, integrating gives f(x) = 4sin x + c. Since f(0) = 3, we have 4sin(0) + c = 3, so c=3. Thus, f(x) = 4sin x + 3.
السؤال 6
النقاط: 1
Find the function f(x) satisfying the given conditions. $f''(x) = 12x^2 + 2e^x$, $f'(0) = 2$, f(0) = 3
تفسير الإجابة
Integrating $f''(x) = 12x^2 + 2e^x$ gives $f'(x) = 4x^3 + 2e^x + c_1$. Using $f'(0) = 2$, we get 4(0)3 + 2e0 + c1 = 2, so 2 + c1 = 2, which means c1 = 0. Thus $f'(x) = 4x^3 + 2e^x$. Integrating again gives f(x) = x4 + 2e^x + c2. Using f(0) = 3, we get (0)4 + 2e0 + c2 = 3, so 2 + c2 = 3, which means c2 = 1. Thus f(x) = x4 + 2e^x + 1. It seems there is a typo in the provided options or question, assuming $f''(x) = 12x^2 + 2e^x$ and $f'(0)=2$, f(0)=3, the correct answer should be x4+2e^x+1. However, if $f'(0)$ was 0, then f(x) = x4+2e^x+1. If $f'(0)$ was 4, then f(x) = x4+2e^x-1. Based on the options, it is likely that $f'(0)=4$ was intended or there's a typo in the $f''(x)$ expression.
السؤال 7
النقاط: 1
Use summation rules to compute the sum.
تفسير الإجابة
\(\text{The sum is } \sum_{i=1}^{40}(4-i^2)=\sum_{i=1}^{40}4-\sum_{i=1}^{40}i^2. \text{So } 4\times40-\frac{40(40+1)(2\times40+1)}{6}=160-22140=-21980.\)
السؤال 8
النقاط: 1
The following figure represents f(x). Find lim as n→∞ of Σ f(x_i) Δx_i in the interval [-3, 3].
السؤال 9
النقاط: 1
\(\text{Using the limit of Riemann sums for } \int_{0}^{3}(x^2+1)\,dx.\)
السؤال 10
النقاط: 1
\(\text{Express the limit as an integral: } \lim_{n\to\infty}\frac{1}{n}\left[\sin\left(\frac{\pi}{n}\right)+\sin\left(\frac{2\pi}{n}\right)+\cdots+\sin\left(\frac{n\pi}{n}\right)\right].\)
السؤال 11
النقاط: 1
\(\text{Express the limit as an integral: } \lim_{n\to\infty}\frac{5}{n}\sum_{i=1}^{n}\left(2+\frac{5i}{n}\right)^2.\)
السؤال 12
النقاط: 1
\(\text{Express the limit as an integral: } \lim_{n\to\infty}\frac{1}{n}\left[\ln\left(4+\frac{1}{n}\right)+\ln\left(4+\frac{2}{n}\right)+\cdots+\ln\left(4+\frac{n}{n}\right)\right].\)
السؤال 13
النقاط: 1
\(\text{Assume that } \int_{1}^{3}f(x)\,dx=3 \text{ and } \int_{1}^{3}g(x)\,dx=-2.\; \text{Find } \int_{1}^{3}\left[2f(x)-g(x)\right]\,dx.\)
السؤال 14
النقاط: 1
\(\text{Assume that } \int_{1}^{3}2f(x)\,dx=6 \text{ and } \int_{1}^{3}g(x)\,dx=-2.\; \text{Find } \int_{1}^{3}\left[f(x)+4g(x)-2\right]\,dx.\)
السؤال 15
النقاط: 1
Use a geometric formula to compute the integral ∫ from 1 to 4 f(x) dx, using the graph.
السؤال 16
النقاط: 1
\(\text{Use a geometric formula to compute } \int_{0}^{2}\sqrt{4-x^2}\,dx.\)
السؤال 17
النقاط: 1
\(\text{Use a geometric formula to find } a \text{ if } \int_{0}^{a}\sqrt{a^2-x^2}\,dx=4\pi.\)
السؤال 18
النقاط: 1
Find a value of c that satisfies the conclusion of the Integral Mean Value Theorem for f(x)=3x2 on [0,2].
السؤال 19
النقاط: 1
\(\text{Compute the definite integral exactly: } \int_{1}^{4}\left(x\sqrt{x}+\frac{3}{x}\right)\,dx.\)
السؤال 20
النقاط: 1
\(\text{Compute the definite integral exactly: } \int_{1}^{2}\left(4x-\frac{2}{x^2}\right)\,dx.\)
Sketch and find the area of the region determined by y=x2-1 and y=7-x2.
السؤال 36
النقاط: 1
Sketch and find the area of the region determined by y=√x and y=x2.
السؤال 37
النقاط: 1
Find the area of the region bounded by x=y, x=-y, and x=1.
السؤال 38
النقاط: 1
Find the area of the region bounded by x=3y and x=2+y2.
السؤال 39
النقاط: 1
Find the area of the region bounded by y=2x (x>0), y=3-x2, and x=0.
السؤال 40
النقاط: 1
Let R be bounded by y=4-2x, the x-axis, and the y-axis. Compute the volume formed by revolving R about y=4.
السؤال 41
النقاط: 1
Let R be bounded by y=4-2x, the x-axis, and the y-axis. Compute the volume formed by revolving R about x=2.
السؤال 42
النقاط: 1
Let R be bounded by y=x2 and y=4. Compute the volume formed by revolving R about y=6.
السؤال 43
النقاط: 1
Let R be bounded by y=x2 and y=4. Compute the volume formed by revolving R about x=-4.
السؤال 44
النقاط: 1
Compute the volume of the solid formed by revolving the region bounded by y=2-x, y=0, and x=0 about the x-axis.
السؤال 45
النقاط: 1
Let R be bounded by y=x2 and y=4-x2. Compute the volume formed by revolving R about the x-axis.
السؤال 46
النقاط: 1
Compute the volume of the solid formed by revolving the region bounded by y=√x, y=2, and x=0 about the y-axis.
السؤال 47
النقاط: 1
Let R be bounded by y=x2 and x=y2. Compute the volume formed by revolving R about x=1.
السؤال 48
النقاط: 1
\(\text{Compute the arc length exactly for } y=2x-x^2,\;0\le x\le2.\)
السؤال 49
النقاط: 1
\(\text{Compute the arc length exactly for } y=\tan x,\;0\le x\le\frac{\pi}{4}.\)
السؤال 50
النقاط: 1
Compute the arc length exactly for y=lnx, 1≤x≤3.
السؤال 51
النقاط: 1
\(\text{Find the surface area integral generated by revolving } y=e^x,\;0\le x\le1,\;\text{ about the x-axis}.\)
السؤال 52
النقاط: 1
\(\text{Find the surface area integral generated by revolving } y=\cos x,\;0\le x\le\frac{\pi}{2},\;\text{ about the x-axis}.\)
السؤال 53
النقاط: 1
A diver drops from 30 ft above the water. What is the diver's velocity at impact? Ignore air resistance.
السؤال 54
النقاط: 1
A diver drops from 120 ft above the water. What is the diver's velocity at impact? Ignore air resistance.
السؤال 55
النقاط: 1
If height is increased by a factor of h, by what factor does the impact velocity increase?
السؤال 56
النقاط: 1
\(\text{An object is launched at angle } \theta=\frac{\pi}{3} \text{ from the horizontal with initial speed } v_0=98\;\text{m/s}.\; \text{Determine the time of flight and horizontal range}.\)
السؤال 57
النقاط: 1
Find the time of flight and horizontal range of an object launched at angle 30° with initial speed 40 m/s.
إليك اختبارات إضافية لـ الصف الثاني عشر المتقدم بحسب الفصل الثالث والمادة رياضيات
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