Question

here @ikram002p

Answer 1

In a ring A for
a,bϵA
,we have (na)b=a(nb) this relation is _____________
Translative
Nil potent
idempotent
Associative

Answer 2

(na)b=a(nb)
well what do u think ?

Answer 3

associative?

Answer 4

am i correct?

Answer 5

wait sorry i was afk, ur correct :)

Answer 6

ok thanks

Answer 7

Let
ϕ:R→R′
be a homomorphism of a ring R into a ring R'. The one of these is not true

ϕ(0)=0′
ϕ(−a)=−ϕ(a)
ϕ(e)=e′
ϕ′(s′)
is not a subring of R where S' is a subring

Answer 8

what does this notation mean ? ` ′ `

Answer 9

its phi

Answer 10

\[ \phi\]