- 585
- 1 787 114
Math Problems Solved Craig Faulhaber
Приєднався 10 тра 2012
College Algebra Final Review 13: Simplify: (9+i)/(-3-2i). Write your answer in the form a+bi
Here, we're dividing complex numbers
Simplify: (9+i)/(-3-2i). Write your answer in the form a+bi, where a and b are real numbers
Simplify: (9+i)/(-3-2i). Write your answer in the form a+bi, where a and b are real numbers
Переглядів: 434
Відео
College Algebra Final Review 11: Find the variation constant and equation of variation where y varie
Переглядів 2273 роки тому
Find the variation constant and equation of variation where y varies inversely as x and y=7 when x=7.
College Algebra Final Review 14: Solve by factoring 2m^2 - 9m + 7 = 0
Переглядів 2333 роки тому
Solve the equation by factoring. In this problem, a is not equal to 1, so we use factoring by grouping. 2x^2 - 9x 7 = 0
College Algebra Final Review 15: Solve by Completing the Square x^2 = 16x + 10
Переглядів 3043 роки тому
Solve by Completing the Square x^2 = 16x 10
College Algebra Final Review 12: Multiply (sqrt(-9))(sqrt(-49))
Переглядів 1323 роки тому
We're multiplying imaginary numbers in this problem :) Multiply (sqrt(-9))(sqrt(-49))
College Algebra Final Review 10 Write an equation for a function that has the shape of y=sqrt(x), bu
Переглядів 2703 роки тому
Write an equation for a function that has the shape of y=sqrt(x), but reflected across they-axis and shifted right 4 unites and down 5 units
Parametric Curves 3: If a projectile is fired with an initial velocity of V meters per second at...
Переглядів 2,3 тис.3 роки тому
If a projectile is fired with an initial velocity of V meters per second at an angle A above the horizontal and air resistance is assumed to be negligible, then it's position after t seconds is given by the parametric equations x=(Vcos(A))t, y=(Vsin(A))t-1/2gt^2 Show that the path of the bullet is parabolic by eliminating the parameter to find a Cartesian equation that describes the path. Your ...
Parametric Curves 2: Assume time t runs from zero to 2pi and that the unit circle has been labeled..
Переглядів 9463 роки тому
Assume time t runs from zero to 2pi and that the unit circle has been labeled as a clock. Match each of the pairs of parametric equations with the best description of the curve from the following list. Enter the appropriate letter (A,,B,C,D,E,F) in each blank.
How to Parameterize a Line (Parametric Curves 1)
Переглядів 1,9 тис.3 роки тому
It can be shown that the parametric equations x=x_1 (x_2-x_1)t and y=y_1 (y_2-y_1)t where t is on [0,1], describe the line segment that joins the point P1(x1,y1) and P2(x2,y2). Use this fact to find the parameterization of the line segment from (-2,7) to (3,-1)
Find the first 4 nonzero terms of the Taylor Series for f(x)=4/x centered at x=-2
Переглядів 17 тис.3 роки тому
Here's one more Taylor Series problem for you :)
Find the first 3 nonzero terms of the Taylor series for f(x)=√(8x−x^2) about a=4
Переглядів 11 тис.3 роки тому
Find the first 3 nonzero terms of the Taylor series for f(x)=√(8x−x^2 ) about a=4
Write the Taylor series for f(x)=e^x about x=1. Find the first 5 coefficients.
Переглядів 15 тис.3 роки тому
Write the Taylor series for f(x)=e^x about x=1 as ∑_(n=0)^∞〖c_n (x−1)^n 〗 Find the first 5 coefficients.
For which values of p will the series converge?
Переглядів 10 тис.3 роки тому
Here, we use the integral test to complete this calculus 2 problem. There's a pretty complicated u-substitution. Enjoy!
Write the Taylor series for f(x)=sinx about x=π/2. Find the first 5 coefficients.
Переглядів 6 тис.3 роки тому
Here's a good Calculus 2 problem. We find a Taylor Series for a function that isn't centered at zero. We need to calculate derivatives and function values to do this. Write the Taylor series for f(x)=sinx about x=π/2 as ∑_(n=0)^∞ c_n (x−π/2)^n Find the first 5 coefficients.
Limit Comparison with SUM ln(n)/n^3 (Convergent or Divergent Series 23)
Переглядів 13 тис.3 роки тому
Here, we use the limit comparison test to determine whether the sum of ln(n)/n^3 converges or diverges. Enjoy!
Taylor Series 3: Write the Taylor series for f(x)=x^3 about x=1 as ∑_(n=0)^∞ c_n (x−1)^n
Переглядів 4,3 тис.3 роки тому
Taylor Series 3: Write the Taylor series for f(x)=x^3 about x=1 as ∑_(n=0)^∞ c_n (x−1)^n
MacLaurin Series 2: By recognizing each series below as a Taylor series evaluated at a particular va
Переглядів 2,2 тис.3 роки тому
MacLaurin Series 2: By recognizing each series below as a Taylor series evaluated at a particular va
MacLaurin Series 1: Write out the first four terms of the Maclaurin series of f(x)
Переглядів 13 тис.3 роки тому
MacLaurin Series 1: Write out the first four terms of the Maclaurin series of f(x)
Use a TI calculator to find areas under the normal curve. Several examples :)
Переглядів 3413 роки тому
Use a TI calculator to find areas under the normal curve. Several examples :)
Use Z-Scores to Find Areas Under the Normal Distribution
Переглядів 3683 роки тому
Use Z-Scores to Find Areas Under the Normal Distribution
Solving e^x - 4 = -4e^-x (Solving Exponential and Log Equations Part 4 of 4)
Переглядів 8223 роки тому
Solving e^x - 4 = -4e^-x (Solving Exponential and Log Equations Part 4 of 4)
Solving Exponential and Logarithmic Equations Homework Problems (Part 3 of 4)
Переглядів 1003 роки тому
Solving Exponential and Logarithmic Equations Homework Problems (Part 3 of 4)
Solving Exponential and Logarithmic Equations Homework Problems (Part 2 of 4)
Переглядів 503 роки тому
Solving Exponential and Logarithmic Equations Homework Problems (Part 2 of 4)
Solving Exponential and Logarithmic Equations Homework Problems (Part 1 of 4)
Переглядів 2453 роки тому
Solving Exponential and Logarithmic Equations Homework Problems (Part 1 of 4)
Find the Power Series representation of f(x)=ln(1-x^2)
Переглядів 11 тис.3 роки тому
Find the Power Series representation of f(x)=ln(1-x^2)
Interval of Convergence 7 (Ratio Test Example!)
Переглядів 2603 роки тому
Interval of Convergence 7 (Ratio Test Example!)
Interval of Convergence 6 (Root Test!)
Переглядів 1,2 тис.3 роки тому
Interval of Convergence 6 (Root Test!)
Interval of Convergence 5 (Ratio Test)
Переглядів 4693 роки тому
Interval of Convergence 5 (Ratio Test)
Rational Inequalities Homework (Part 3)
Переглядів 263 роки тому
Rational Inequalities Homework (Part 3)
The calculation to get margin of error should have been (zalpha/2) * pq/squareroot of n
Why is 1/3 not being integrated ?
you did not distribute the negative sign at the end of your definite integral
Thank you very much I needed this
Hey Craig, Can you please tell this question is from which book?
Thanks a lot my dude. I was getting stuck after plugging in the derivative squared into the arc length formula. I appreciate you uploading this video and helping us all
Thank you 😭!!! You just helped me a BUNCH!!!
❤
Thanks🌹❤
Thank you
you have saved my life thank you so much
Great video. Thank you.
please don't explain it like I simply was a pro and just forgot how to do it. more detail and accuracy.
wrong thumbnail
Alternating test says the series must be decreasing and positive and the limit goes on zero when n approach infinity
You forgot to tag on the 2pi from the original shell formula
can i ask why the interest rate changed into a 0.5 % instead of 5%
Interest is always written in decima form so since it's 5% interest you I'll say 5÷100 then you'll get 0.05 if you are being given 10% you'll do the same 10÷100 that's 0.1
amazingggg life saver
Thank you!
This is such a good explanation!
this video saved me in college, because he at least told me i can use a calculator. =_= and what numbers to plug into it.
Wrong, formula you use
Quick and straight to the point with no unnecessary commentary. You are a lifesaver.
Very useful. Thank you for the quick lesson.
thanks❤
Thank you!
type shiii
I had a Differential Equations test I was struggling for on complex eigenvalues and I watched a couple other videos to try and understand the process but this guy absolutely cleared things up and thanks to him I think I rocked the test.
Fantastic video and explanation!
thank u so much oh my god god bless u
Absolute gem of a video
THANK YOU!!
how did a become 2?
bro carrying me in calc rn thank you
Thanks alot sir.
teşekkürler
Thank you:)
Very good explanation, thank you!
Thanks I forgot how to do this.
thanks
Can you make one where we see what we’re supposed to plug in for x?
You can still simplify it further, which is 1/(x|ln(2x)|√(49(ln(2x))^2-1)).
This was over 4 years ago, but I wanted to say thank you so much & especially how quick to the point you were!!!
The margin of error would be 13.2% divided by 2 because isn’t 95% CI stating that it’s 2 SD away from the mean??
thanks for the amazing explanation :)
Thank you, your simple words have ended my confusion!
this is still a great video
Why is your voice sound so bad what the fuck
thanks
thank u legend 🙏