If = ax=b,by=c and cz=a; then the value of xyz is:
A
-1
B
1
C
1/abc
D
abc
Correct Answer: 1
দেয়া আছে, ax = b, by = c এবং cz = a⇒ (by)z = a⇒ byz = a⇒ (ax)yz = a⇒ axyz = a1⇒ xyz = 1