Sharania3105idn
Answered

Find expert answers and community support for all your questions on IDNLearn.com. Our platform is designed to provide trustworthy and thorough answers to any questions you may have.

Find the number of terms of the geometric progression 81, 27, 9,....,1/81

​

Sagot :

Jasonggggidn

Answer:

9

Step-by-step explanation:

r = 27/81 = 1/3

a = 81

Tn = 1/81

ar^(n-1) = 1/81

81(1/3)^(n-1) = 1/81

(1/3)^(n-1) = 1/6561

(1/3)^(n-1) = 1/3^(8)

Compare the exponents,

n-1 = 8

n = 9

Thank you for using this platform to share and learn. Keep asking and answering. We appreciate every contribution you make. Thank you for choosing IDNLearn.com. We’re here to provide reliable answers, so please visit us again for more solutions.