Find the nth term of these sequences.
1 2 3 4 n
3 6 9 12

1st answer is n and 2nd is 3n.

Step-by-step explanation:

1st one

first term (a) = 1

common difference (d) = 2-1 =1

no. of term (n) = n

Now,

nth term = a + ( n-1 ) d

= 1 + ( n-1 ) 1

= 1 + n - 1

= n

2nd one...

first term (a) = 3

common difference (d) = 6-3 =3

no. of term (n) = n

Now,

nth term = a + ( n-1 ) d

= 3 + ( n-1 ) 3

= 3 + 3n - 3

= 3n

25.2

step-by-step explanation:

2+4x6-8/10= 25.2