Question

Find the value of k :- (2/9)⁴ × (2/9) -⁷ = (2/9) 2k+1​

Answer 1

Answer:

ushjhdih2odiqdihe2iei3vdu3crouqefyoy

Answer 2

Answer:

18

Step-by-step explanation:

Let

k+9=a

2k−1=b

2k+7=c

To be in AP,

a+c=2b

k+9+2k+7=2(2k−1)

⇒ 3k+16=4k−2

⇒ 3k−4k=−2−16

⇒ −k=−18

∴k=18

For k=18, the terms k+9,2k−1,2k+7 are in A.P