## MACLAURIN SERIES COSH 2X

And sine of x looks just like this term plus a negative version of this term, plus this term, plus a negative version of the next term. So let me use a non-pink, non-green. This is equal to the third derivative of x. That’s kind of the first mind blowing thing about the number e. So we have to find f of 0, f prime of 0, the second derivative at 0. Once again, e to the x is starting to look like a pretty cool thing.

Practice online or make a printable study sheet. It’s always equal to e to the x. We’re starting to see a connection between something related to compound interest or a function whose derivative is always equal to that function. Hints help you try the next step on your own. And this will, to some degree, be one of the easiest functions to find the Maclaurin series representation of. And that’s why it makes applying the Maclaurin series formula fairly straightforward.

And let’s do the same thing for the sine of x that we did last video. If you’re seeing this message, it dosh we’re having trouble loading external resources on our website. This also leads to other interesting results. Maclaurin series are a type of series expansion in which all terms are nonnegative integer powers of the variable. Graphs of Taylor Polynomials Abby Brown.

### Taylor/Maclaurin Series Calculator – Symbolab

That if you wanted to approximate e, you just evaluate this at x is equal to 1. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. It’s going to be equal to any of the derivatives evaluated at 0. This is 1, this is 1, when we’re talking about e to the x. And I think you see the pattern here. This is going to be equal to f prime of 0. So if you wanted to approximate e, you’d say e is approximate to– well, e is e to the first power.

So f of 0 is 1 plus f prime of 0 times x. So it’ll be 1 plus 1.

Anyway, with that said, let’s take its Maclaurin representation. The n-th derivative evaluated at 0. But I’ll leave you there in that video. And in the next video, I’ll show you how we can actually reconcile these three fascinating functions.

Walk through homework problems step-by-step from beginning to end.

The Maclaurin series of a function up to order may be found using Series [ f macllaurin, x0, n ]. If x is 1 here, we make x 1 over here. The slope at any point on that curve is the same as the value of that point on that curve. So we have to find f of 0, f prime of 0, the second derivative at 0.

And that’s why it makes applying the Maclaurin series formula fairly straightforward. Collection of teaching and learning tools built by Wolfram education experts: But that by itself isn’t the only fascinating thing. So it’s a negative version of this term right here, plus this term right here, plus a negative seris of this term right over here.

That’s kind of the first mind blowing thing about the number e.

So that seriea cosine of x. That’s kind of crazy. And we’ll get closer and closer to the real e to the x as we keep adding more and more terms.

## Taylor series of hyperbolic functions

But what’s really cool is this is another really neat way to represent e. I’ll use the yellow here. And so this is going to be equal sseries f of 0.

Video transcript Now let’s do something pretty interesting. But let’s try to approximate e to the x. We’re starting to see a connection between something related to compound interest seriies a function whose derivative is always equal to that function.

Cyclic Functions under Differentiation William Perry. Copy, and then let me paste that. Maclaurin series of sin x. So cosine of x right up here. Visualizing Taylor series approximations.