Question

if for an ap a=1 d=4,tn=45 then ,n=
nonsense answer will be reported ​

Answer 1

Answer:

12

Step-by-step explanation:

tn=a+(n-1)d

45=1+(n-1)4

45-1=(n-1)4

44/4=n-1

11=n-1

Then,

n=11+1=12