Question

The sum of the first 7 terms of an AP is 10 and that of the next 7 terms is 17 find the first term n the common difference​

Answer 1

Step-by-step explanation:

a^7-10

a+6d=10.........(1)

a^7=17

a+6d=17.........(2)

divide eq (1) and (2)

a+6d=10

a+6d=17

- -. -

________

0+d=-7

Answer 2

Answer:

ज ने अपनी रिपोर्ट को सही तरीके को सही to र a carriage of revolutions the