Answer:
a) The required terms are:
7,10,13,16,....34
b) The required terms are:
-1,3,7,11,...35
Explanation:
For each question we need to find the first 4 terms and the 10th term.
a) 3n + 4
Put n = 1, 2 ,3, 4 for first 4 terms, and 10 for 10th term
Put n = 1, 3(1)+4 = 3+4 = 7
Put n = 2 , 3(2)+4 = 6+4 = 10
Put n =3 , 3(3)+4 = 9+4 = 13
Put n = 4, 3(4) + 4 = 12+4 = 16
Now, Put n= 10 3(10)+4 = 30+4 = 34
So, the required terms are:
7,10,13,16,....34
b) 4n -5
Put n = 1, 2 ,3, 4 for first 4 terms, and 10 for 10th term
Put n = 1, 4(1)-5 = 4 - 5 = -1
Put n = 2 , 4(2)-5 = 8-5 = 3
Put n =3 , 4(3)-5 = 12-5 = 7
Put n = 4, 4(4) -5 = 16-5 = 11
Now, Put n= 10 4(10)-5 = 40-5 = 35
So, the required terms are:
-1,3,7,11,...35