Question

1. In an A.P the 10th term is 46, sum of the 5th and 7th term is 52. Find the A.P​

Answer 1

Step-by-step explanation:

10th term = a + 9d=46 ...(1)

and sum of 5th and 7th is 52

so, (a+4d)+(a+6d)=52

2a+10d=52

now divide the whole equation with 2

we get, a+5d=26 ...(2)

now use elimination method and we get the value of d=5 and a=1

so our AP is 1,6,11,16,21... and so on

hope it will help uhh