The function g is defined by g ( x ) = <msubsup> &#x222B;<!-- ∫ -->

kokoszzm

kokoszzm

Answered question

2022-06-24

The function g is defined by g ( x ) = 20 x ( f ( t ) ) 2 d t ,, and we're given
g ( 20 ) = 100 , f ( 0 ) = 4 , f ( 0 ) = 12 , f ( 0 ) = 20.
use a tangent line approximation to estimate g ( 0.1 )

Answer & Explanation

Korotnokby

Korotnokby

Beginner2022-06-25Added 19 answers

Write the MacLaurin series up to the 3rd degree
g ( x ) = 20 0 f ( t ) 2 d t + f ( 0 ) 2 x + f ( 0 ) x 2 f ( 0 ) + 1 3 x 3 ( f ( 0 ) f ( 0 ) + f ( 0 ) 2 ) + O ( x 4 )
Thus we have
g ( 0.1 ) 20 0 f ( t ) 2 d t + f ( 0 ) 2 10 + 1 100 f ( 0 ) f ( 0 ) + f ( 0 ) f ( 0 ) + f ( 0 ) 2 3000
Knowing that g ( 20 ) = 100 implies that 20 0 f ( t ) 2 d t = 50
Furthermore we know f ( 0 ) = 4 , f ( 0 ) = 12 , f ( 0 ) = 20. So we get
g ( 0.1 ) 50 + 4 2 10 + 1 100 ( 4 12 ) + 4 20 + 12 2 3000 = 19558 375 52.1547

Do you have a similar question?

Recalculate according to your conditions!

New Questions in Differential Equations

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?