Question

if phi(ab)=120 ;phi (b)=30; find phi (a)

Answer 1

Answer:

phi(a)= 40

Step-by-step explanation:

given that phi(ab)=120

and Phi(b)= 30

So, Phi(a*30) = 120

⇒phi(a) = 120/30

⇒phi(a)= 40

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Answer 2

Answer:

4

Step-by-step explanation:

phi(ab)=120

phi(b)=30

phi(a)=4

as 30 x 4=120