Question

(i) 10th term of the A.P. 1, 4, 7, 10,...
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Answer 1

first term (a) = 1

common difference (d) = 4 - 1 = 3

tenth term = a + 9d = 1 + 9(3)

= 1+27 =28

Answer 2

Step-by-step explanation:

ap = 1, 4 , 7, 10 _______

a= 1 d = 4- 1 = 3

n = 10

a + ( n- 1 ) × d = an

1+ (10 - 1 ) × 3 = an

1 + 9 × 3 = an

1 + 27 = an

28 = an