Hello everyone,

Im writing this as im trying to figure out why solving finite integrals with my ti 84 plus gives me different answers as solving it with an integral calculator like https://www.integralrechner.de/#

The integrals are:
(1-cos(π*x/14))^2dx (from 0 to 7)
for which im getting 1,977*10^-7 with my TI whereas I should get 1,587
cos(π*x/14)^2dx (from 0 to 7)
for which im getting 7 with my TI and 3.5 with an online integral calculator

Why is this happening?
Thanks in advance

P.S. i typed the integrals in correctly, hopefully
Did you make sure you were in the correct mode (radians vs. degrees)?
you are the real MVP thanks for the fast and helpful answer
Register to Join the Conversation
Have your own thoughts to add to this or any other topic? Want to ask a question, offer a suggestion, share your own programs and projects, upload a file to the file archives, get help with calculator and computer programming, or simply chat with like-minded coders and tech and calculator enthusiasts via the site-wide AJAX SAX widget? Registration for a free Cemetech account only takes a minute.

» Go to Registration page
Page 1 of 1
» All times are UTC - 5 Hours
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum