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Find the geometric means of the followin...

Find the geometric means of the following pairs of number: `2` and `8`.

Text Solution

Verified by Experts

Given, `N` is the G.M. of `2` and `8`

Geometric mean relation

`y=sqrt(zx)`

`N=sqrt(2*8)=sqrt(16)`

`N=4`

`(Answer)`
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RD SHARMA-GEOMETRIC PROGRESSIONS-Solved Examples And Exercises
  1. Insert 5 geometric means between 16 and 1/4

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  2. Insert 5 geometric means between (32)/9 and (81)/2

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  3. Find the geometric means of the following pairs of number: 2 and 8.

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  4. Find the geometric means of the following pairs of number: a^3b and a ...

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  5. Find the geometric means of the following pairs of number: -8 and -2.

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  6. If a is the G.M. of 2 and 1/4, find a

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  7. Find the two numbers whose A.M. is 25 and GM is 20.

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  8. If A and G are respectively arithmetic and geometric mean between posi...

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  9. The sum of two numbers is 6 times their geometric mean, show that numb...

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  10. If A.M. and GM. of roots of a quadratic equation are 8 and 5, respecti...

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  11. If AM and GM of two positive numbers a and b are 10 and 8 respectively...

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  12. If the fifth term of a G.P. is 2, then write the product of its 9 term...

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  13. If (p+q)^(th) and (p-q)^(th) terms of a G.P. re m and n respectively, ...

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  14. If (log)x a , a^(x//2) and (log)b x are in G.P., then write the value ...

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  15. If the sum of an infinite decreasing G.P. is 3 and the sum of the squa...

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  16. If p^(th), q^(th) and r^(th) terms of G.P. are x,y,x respectively then...

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  17. If A1 and A2 are two A.M.s between a and b and G1 and G2 are two G.M b...

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  18. If second, third and sixth terms of an A.P. are consecutive terms of a...

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  19. If A and G are respectively arithmetic and geometric mean between posi...

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  20. If n geometric means are inserted between two quantities ; then the pr...

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