• The exponential function, exp : R → R, is the unique function f that satisfies f'(x) = f(x) for all x ER and f(0) = 1. o The natural logarithm, log, is the function inverse to the exponential function, exp: that is, for all x E R and for all y > 0, y = exp (x) if and only if x = log (y). a. Compute the definite integral xa-1 dx. b. Using your result from part a. and any appropriate rules for computing limits, show that lim / r exp t ra-l dx = t. a→0 You may use [exp (t)]ª exp (at) for all real a without proof. %3D c. Explain how, from your answers to parts a. and b., we may justify x- dx = log s.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
Question
2. PAST PAPER QUESTION (JAN 2019). Recall the following definitions.
R, is the unique function f that satisfies f'(x) = f(x) for all x E R and f(0) = 1.
o The exponential function, exp : R -
o The natural logarithm, log, is the function inverse to the exponential function, exp: that is, for all x E R and for all y > 0,
y = exp (x) if and only if x = log (y).
a. Compute the definite integral i xa-1 dx.
b. Using your result from part a. and any appropriate rules for computing limits, show that
• exp t
lim
dx =
= t.
a→0
You may use [exp (t)]ª = exp (at) for all real a without proof.
-1
c. Explain how, from your answers to parts a. and b., we may justify
x dx = log s.
Transcribed Image Text:2. PAST PAPER QUESTION (JAN 2019). Recall the following definitions. R, is the unique function f that satisfies f'(x) = f(x) for all x E R and f(0) = 1. o The exponential function, exp : R - o The natural logarithm, log, is the function inverse to the exponential function, exp: that is, for all x E R and for all y > 0, y = exp (x) if and only if x = log (y). a. Compute the definite integral i xa-1 dx. b. Using your result from part a. and any appropriate rules for computing limits, show that • exp t lim dx = = t. a→0 You may use [exp (t)]ª = exp (at) for all real a without proof. -1 c. Explain how, from your answers to parts a. and b., we may justify x dx = log s.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,