Which of the following is an example of an arithmetic progression?
2, 9, 17, 19...
5, 9, 13, 18
9, 18, 36, 72 ...
101, 201, 301, 401, 501,...
Verify the following:
(i) 18×[9+(−7)]=18×9+18×(−7)
(ii) (−13)×[(−6)+(−19)]=(−13)×(−6)+(−13)×(−19)