Which of the following statements are true and which are false
(17+11)×8=17+(11×8)
(17+11)×8=28×8=22417+(11×8)=17+88=105
Hence, (17+11)×8=17+(11×8) it is false
Check whether the following congruence are true and false
(1) 9 ≡ 23 (mod 12)
(2) 15 ≡ 29 (mod 7)
(3) 175 ≡ 5 (mod 17)
(4) 21 ≡ − 8 (mod 6)