Question

If an=5n-2 then find a4​

Answer 1

given,

an= 5n-4...

whenever you have to find any term in an ap ..

substitut the value of the given term with the 'n'...

that is,

a4= 5(4)-2 = 18

Answer 2

Answer:given,

an=5n-2

Find a4

Explanation: here n=4

Because they have given to find a4 (if they would give to find a3 then n=3)

5(4)-2

20-2

=18