Question

Plz help me wid this qstn!!

I will mark u brainly

Answer 1

DIFFERENCE BETWEEN TWO NUMBERS OF AN AIRMATIC SERIES IS CALLED COMMON DIFFERENCE.

AND IN AP IT IS EQUAL

THANKS°°°°°°°°°°°°°°°°°

Answer 2

common difference of an A.P is the difference of A2-A1.
formulae to calculate it=}an-a-(a-1)=d
another formulae is subtraction of a1 from a2(second term of A.P-first term of A.P)