Question

write first four term of AP whose first term is 10 and d=7​

Answer 1

a = 10

d = 7

To find nth term in an AP

a(n) = a ( first term ) + (n-1)d

To find 1st four terms

a(2) = 10 + (2-1) × 7 = 10 + 7 = 17

a(3) = 10 + (3-1) × 7 = 10 + 14 = 24

a(4) = 10 + (4-1) × 7 = 10 + 21 = 31

Therefore the 1st 4 terms of the AP are

10,17,24 and 31

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Answer 2

GIVEN :-

First term if A.P a1 = 10

Common difference d = 7

R.T.P :-

To find the First four terms of the A.P

SOLUTION :-

We know that ,

General formula of A.P is

a , a + d , a + 2d , a + 3d ,........

substitute the values we get...

10 , 10 + 7 ,10 + 2(7) , 10 + 3(7)......

10 , 17 , 24 , 31 ,..........

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