Question

Help please

Answer 1

@zepdrix

Answer 2

what's the question ?

Answer 3

It's on trapezoidal rule

Answer 4

@knov

Answer 5

@zepdrix

Answer 6

okay

Answer 7

Lets see it

Answer 8

Find the integral of cos(x^2) from 0 to 1 using the midpoint rule and trapezoidal rule and graph

Answer 9

@FortyTheRapper

Answer 10

@knov

Answer 11

I don't know where to start

Answer 12

Lets first find the formula (I'm on my phone so I can't use the equation button sorry)

(Delta X /2)(f(X0) + 2f(x1) + 2f(x2).... + f(xn)

Basically the first and last are f(x) and everything in between are 2f(X)

Answer 13

Okay

Answer 14

Oh yeah I forgot to mention n=4

Answer 15

Ahh OK, do you know how to find Delta X

Answer 16

B-a/2?

Answer 17

Right, what would that be

Answer 18

1/2

Answer 19

I think lol

Answer 20

Yes, now divide that by 2

Answer 21

1/4

Answer 22

Alright, coolio. Now to find one more thing.

Know how we can find the x1, x2, etc?

Answer 23

@FortyTheRapper sorry had to eat

Answer 24

Ugh plug in the values into the equation?

Answer 25

Yeah, but which ones? There will be five, since n was 4

Answer 26

0 1/4 1/2 3/4 1?

Answer 27

I think

Answer 28

Perfect

So we find f(0) + 2f(1/4) + 2f(1/2) + 2f(3/4) + f(1)

Then multiply all that by 1/4

Answer 29

Okay

Answer 30

Thank you :)

Answer 31

Welcome!