https://mail.adamaths.com/forum/
20180090030
https://mail.adamaths.com/forum/viewtopic.php?f=85&t=3154
Page
1
of
1
20180090030
Posted:
Mon Nov 06, 2017 7:18 pm
by
ada
$\dfrac{x+1}{2}-\dfrac{x-1}{4}$