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Chapter 12: Q. 334 (page 1222)

Write the first five terms of the geometric sequence with the given first term and common ratio.

a1=6andr=-2

Short Answer

Expert verified

The first five terms of geometric sequence are6,-12,24,-48and96

Step by step solution

01

Step 1. Given information

Firstterma1=6commonratior=-2

02

Step 2. Write the concept

To find successive terms we use the formula.

a2=a1r

03

Step 3. Calculation

a2=a1r=6.(-2)=-12a3=a2r=-12.(-2)=24a4=a3r=24.(-2)=-48a5=a4r=-48.(-2)=96

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