Question

14. Prove that in a G.P., an-rxan+r = (a,)?​

Answer 1

Answer:

Hello

Step-by-step explanation:

General P

th

team of G.P with first team, a and common ratio, r

1

is a

P

=ar

1

P−1

⇒a

n−r

=ar

1

(n−r−1)

;a

n+r

=ar

1

(n+r−1)

⇒a

n−r

×a

n+r

=a

2

r

1

(n−r−1+n+r−1)

=a

2

r

1

(2n−2)

=[ar

1

n−1

]

2

=(a

n

)

2