My Math Forum  

Go Back   My Math Forum > College Math Forum > Calculus

Calculus Calculus Math Forum


Thanks Tree4Thanks
  • 1 Post By skipjack
  • 1 Post By topsquark
  • 2 Post By romsek
Reply
 
LinkBack Thread Tools Display Modes
September 5th, 2018, 07:13 PM   #1
Newbie
 
TheFedeBlaze's Avatar
 
Joined: Sep 2018
From: Probably my bedroom

Posts: 4
Thanks: 0

Math Focus: E V E R Y T H I N G
Wink Help me to verify these derivates! Urgent!

Hey there, guys!

I'd like to know if you can help me test these formulas. You just have to derive them. And if the result is equal to what is inside the integral are well done.

I'd really appreciate your help.

Thank you!
Attached Images
File Type: jpg IMG-20180905-WA0000.jpg (40.1 KB, 17 views)
TheFedeBlaze is offline  
 
September 5th, 2018, 07:42 PM   #2
Senior Member
 
romsek's Avatar
 
Joined: Sep 2015
From: USA

Posts: 2,174
Thanks: 1142

you can dump them into wolfram alpha as well as we can
romsek is offline  
September 5th, 2018, 07:47 PM   #3
Newbie
 
TheFedeBlaze's Avatar
 
Joined: Sep 2018
From: Probably my bedroom

Posts: 4
Thanks: 0

Math Focus: E V E R Y T H I N G
C'mon dude... Can you give me a hand, please?
TheFedeBlaze is offline  
September 5th, 2018, 08:50 PM   #4
Global Moderator
 
Joined: Dec 2006

Posts: 19,882
Thanks: 1835

The first is okay if 4ac > b².

I haven't checked the others, but it's apparent that special cases, such as when a = 0, haven't been considered.
Thanks from topsquark
skipjack is offline  
September 5th, 2018, 08:52 PM   #5
Math Team
 
topsquark's Avatar
 
Joined: May 2013
From: The Astral plane

Posts: 1,910
Thanks: 774

Math Focus: Wibbly wobbly timey-wimey stuff.
Are you asking how to do the integrals?
To verify the solutions by taking the derivative of the RHS:

Hint: $\displaystyle \frac{d}{dx} \text{atn} (x) = \frac{1}{x^2 + 1}$

Hint: $\displaystyle \frac{d}{dx} \ln|x| = \frac{1}{x}$

The rest is just using the chain rule.

See what you can do with these.

-Dan
Thanks from TheFedeBlaze

Last edited by skipjack; September 6th, 2018 at 05:23 AM.
topsquark is offline  
September 5th, 2018, 09:19 PM   #6
Senior Member
 
romsek's Avatar
 
Joined: Sep 2015
From: USA

Posts: 2,174
Thanks: 1142

Quote:
Originally Posted by TheFedeBlaze View Post
C'mon dude... Can you give me a hand, please?
Attached Images
File Type: jpg Clipboard01.jpg (44.0 KB, 18 views)
Thanks from topsquark and Joppy
romsek is offline  
September 6th, 2018, 03:24 AM   #7
Newbie
 
TheFedeBlaze's Avatar
 
Joined: Sep 2018
From: Probably my bedroom

Posts: 4
Thanks: 0

Math Focus: E V E R Y T H I N G
Thank you so much!
TheFedeBlaze is offline  
Reply

  My Math Forum > College Math Forum > Calculus

Tags
calculus, derivates, math, urgent, verify



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Verify the following Rakshasa Applied Math 7 May 7th, 2012 02:37 PM
A question on binomial series for derivates vvv Calculus 1 May 2nd, 2012 01:49 PM
partial derivates riotsandravess Calculus 1 February 13th, 2011 05:36 PM
can you verify this.... sivela Calculus 1 April 13th, 2010 12:28 PM
2 basic questions about derivates aneuryzma Calculus 2 September 13th, 2009 04:40 AM





Copyright © 2018 My Math Forum. All rights reserved.