Question

if 1,x,y,z,81 are in g.p, find the value of x,y,z​

Answer 1

Answer:

The G.P series : a,ar,ar  

2

,ar  

3

,ar  

4

 

1,x,y,z,16

a=1

ar  

4

=16;r  

4

=16

r=±2

ar=1(2)=2

ar=1(−2)=−

ar  

2

=1(+2)  

2

=4

ar  

2

=1(−2)  

2

=4

ar  

3

=1(2)  

3

=8

ar  

3

=1(−2)  

3

=−8

x,y,z=(2,4,8)

x,y,z=(−2,4,−8)