Question

for what value of x the number-2/7,x,7/2 are in gp

Answer 1

Hi ,

****************************

We know that ,

If a , b , c are in G.P then

b² = ac

*************************************

Now ,

2/7 , x , 7/2 are in G.P then

x² = ( 2/7 ) ( 7/2 )

x² = 1

x = ± √1

x= ± 1

I hope this helps you.

:)