Question

Is it possible that the product of any two terms in Ap 9,16,23... a term in it ? justify

Answer 1

Answer:

no it is impossible

Step-by-step explanation:

Ap 9,16,23,30,37....

d=a2-a1=16-9=7

if the product of two terms of Ap is not

term of Ap

bcoz

a1×a2=9×16=144

then

144 is belongs to Ap or not to check it

if an=144

an=a+(n-1)d

144=9+(n-1)7

144=9+(7n-7)

144-9=7n-7

135+7=7n

142=7n

n=142/7

n should be perfect number ,so the product of any two terms in Ap is not a term of it$

plz tell me is it true...

I hope u u will understand..