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Chapter 12: Q. 335 (page 1222)

In the geometric sequence whose first term and common ratio are a1=5,r=4, find a11.

Short Answer

Expert verified

In the given geometric sequence,a11=5242880.

Step by step solution

01

Step 1. Given information.

Consider the given question,

a1=5,r=4,n=11

General term of geometric sequence isan=a1rn-1......(i)

02

Step 2. Find the required term.

Substitute the values in equation (i),

a11=5411-1=5410=5脳1048576=5242880

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