Question

which term of AP 13, 15, H.- is 71​

Answer 1

Answer:

a=13

d=15-13

d=2

an=71

a+(n-1)d=71

13+(n-1)2=71

(n-1)2=71-13

(n-1)2=58

n-1=58/2

n-1=29

n=30

Answer 2

Step-by-step explanation:

an = a + (n-1) d

7 I=13+(n-1) 2

60 = 2n

n=30