Question

a-3,a-5,a-7,..... sequences in A.P​

Answer 1

now simple for showing a,b,c are ap

the formula should be matched

2b=a+c

so now

2(a-5)=a-3+a-7

2a-10=a+a-10

so L.H.S =R.H.S HENCE THEY ARE IN AP

Answer 2

Answer:

.Check whether the sequence a-3,a-5,a-7 in AP?

Step-by-step explanation:

.Check whether the sequence a-3,a-5,a-7 in AP?