Solution

Fragment of a discussion from User talk:AiliShao

MATH152/April 2017/Question A 13/Solution 1.

Sorry I forgot to write it.

HANHONG (talk)23:02, 5 March 2018

OK..I have corrected it.

AiliShao (talk)23:08, 5 March 2018

Thank you.

HANHONG (talk)17:28, 7 March 2018