Question

find the 18th term of the a.p.7,13,19,25,​

Answer 1

Step-by-step explanation:

Here, a= 7 and d= 13-7=6

Now,

T18= a+(n-1)d

= 7+(18-1)6

= 7+17x6

=7+102

T18 =109

Hence, the 18th term is 109.

Answer 2

AP is simply defined as the sequence or pattern.

for finding terms we use formula = a + ( n - 1)d

In an AP,

an = term value

a = first term

d = common difference

n = terms

Now your solution mate,

here an = ?

a = 7

d = 13 - 7 = 6

n = 18

now put the value in the formula .

an = a + ( n - 1)d

a18 = 7 + ( 18 - 1)* 6

a18 = 7 + 102

a18 = 109

so 109 is the 18th term of an AP.

hope it's help ✌✌