Question

If a, a1 a2......... a10 b are in Ap a, g1......... G10 b are in gp h is the harmonic mean then

Answer 1

h1/h2=h2/h3=h3/h4=h4/h5=h5/h6=h6/h7=h7/h8=h8/h9=h9/h10

and also h1=h2=h3=h4=h5=h6=h7=h8=h9=h10

Is called harmonic progression.

I hope it will help for u ☺.

Answer 2

Answer:

h=2ab/a+b

a+b=a1+a10=a2+a9=......=a5+a6='x'

ab=g1.g10=g2.g9=.......=g5.g6='y'

 

 

5x/y+4x/y+3x/y+2x/y+x/y

=15x/y

 

h=2y/x.      (x=a+b.     y=ab)

x/y=2/h

 

15x/y =30/h

 

Ans.  30/h

Step-by-step explanation: