427 Answered Questions for the topic Calculus 2

10/09/16

Find the parametric equations and the symmetric equations for the line.
Find the parametric equations and the symmetric equations for the line.   The line of intersection of the planes x + 2y +3z = 1 and x - y + z = 1.   Please explain and thanks in advance!
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10/08/16

Vector Functions and Space Curves PLEASE HELP!
At what points does the curve r(t) = ti + (4t − t^2)k intersect the paraboloid z = x^2 + y^2? (If an answer does not exist, enter DNE.)   smaller t-value (x, y, z) = larger t-value (x, y, z)... more
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10/03/16

CALC 3 : Is the line through (-4, -6, 1) and (-2, 0, -3) parallel to the line through (8, 19, 8) and (3, 4, 18)?
Is the line through (−4, −6, 1) and (−2, 0, −3) parallel to the line through (8, 19, 8) and (3, 4, 18)?   Please use something along the lines of parametric and symmetric equations! This is... more
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Calculus 2 Calculus

09/29/16

Calculus 2 Integration
I have more problem on my webwork that is confusing me:   Make the substitution u=√x to express the integrand as a rational function and then evaluate the integral ∫(6√x)/(x+9)dx
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Calculus 2 Calculus

09/29/16

Calculus 2 Integration
I'm having trouble understanding this problem.   Make the substitution u=ex to express the integrand as a rational function with three linear factors in the denominator, one of which is u, and... more
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Calculus 2 Math Help Calculus 3

09/26/16

Let f(x) = x^2. Find f(2x) - 2f(x) for x = -3. PLEASE HELP!!!
Let f(x) = x^2. Find f(2x) − 2f(x) for x = -3.   Here are the answer choices.    a. -18 b. -9 c. 0 d. 9 e. 18   Please explain and thank you in advance!
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Calculus 2

09/23/16

y=x;y=square root (x); about y=1. Find the volume using washer/disk method.
I got pi/6. Not sure about the answer. Thanks.
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09/22/16

Calculus 2 Help Finding the Area of the Curve
1.) Sketch the region enclosed by the curves below.2.) Decide whether to integrate with respect to x or y.3.) Find the area of the region.   2y=5sqrt(x), y=3, and 2y+1x=6
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Calculus 2

09/16/16

Evaluate the integral. 0 to 1 (x3 - 5x - 11)/(x2 - x - 6) dx
I tried it and got A= 1/5 and B=-7/5. Not sure about it. Thanks. 
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Calculus 2

09/16/16

What is the integral of t^5/v(t^2+7) dt ?
I got an answer but not sure about it. Thanks.
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Calculus 2

09/16/16

Integrate improper integral from 3 to 2 of 1/square root of 3-x
Does it converge or diverge? I got 2 and therefore converges.
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09/16/16

Calculus 2 The Fundamental Theory of Calculus help
Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of y=∫cos(u2)du for b=4x and a=cos(x). I don't quite understand what to do here.
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09/13/16

Solving for t in this equation.
205e0.005t = 280 + t   Please help me solve for t. I would like to know how to do it by hand.   
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Calculus 2

09/10/16

I need help on calc 2
find integral   integral of x cos x dx
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Calculus 2

09/10/16

I need help on calc 2
find integral    intergral of tan(ln(x))/x dx
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Calculus 2

09/10/16

I need help on calc 2
find integrals   integrals that goes to 3 to 0   2/(9+x^2)dx       
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Calculus 2

09/10/16

I need help on calc 2
find limits    limx→0   x^rootx
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Calculus 2

09/10/16

I need help on calc 2
find limits   lim x→∞  e^x/x^3
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Calculus 2

09/10/16

I need help on calc 2
find limits      lim x->2^-      tan^-1(1/4-x^2)
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Calculus 2

09/10/16

I need help on calc 2
derivative of y=x^(cos^-1(x))
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Calculus 2

09/10/16

I need help on calc 2
what is derivative of 1/(ln(cosx))
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Calculus 2

09/10/16

I need help on calc 2
derivative of 7^root(x-3)
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Calculus 2

09/10/16

Determine whether the integral is convergent or divergent. infinity 85 cos(pi t) dt negative infinity
Is it divergent?
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Calculus 2

09/09/16

Integrate 10/(x-1)(x^2+9) dx
What is the answer? How do you do this? Partial fractions. Thanks.
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Calculus 2

09/04/16

Definite Integral Questions
I have a few questions that deal with definite integrals that I am confused about.   1) (a) Find the Riemann sum for f(x)=x^3, 2≤x≤12, if the partition points are 2,5,9,12 and the sample points... more
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