Question

the 4 th term of an ap is equal to 3 times the first term and the 7 th term exceeds the 3 rd term by 1 . find the first term and common difference​

Answer 1

Step-by-step explanation:

common difference is 1/4

first term is 3/8

Answer 2

Step-by-step explanatation

a4= 3(a)

a+3d=3a

3d=3a-a

3d=2a..............(1)

a7=a3+1

a+6d =a+2d+1

6d-2d= 1

4d = 1

d=1/4

putting the value  of (d) in equation ......(1)

3*1/4 = 2a

3/4*2 = a

3/8 = a                        

answer....