NDA2021MathematicsSequences and SeriesActual
If g is the geometric mean of 2,4,8,16,32,64,128,256,512 , 1024, then which one of the following is correct?
Options
- A8 g 16
- B16 g 32
- C32 g 64
- Dg 64
Correct answer
C. 32 g 64
Step-by-step solution
If g is the geometric mean of 2,4,8,16,32,64,128 , 256,512,1024 . Then g=(2 4 8 16 32 64 128 256 512 1024)^ 1 / 10 aligned & g= (2^1 2^2 2^3 2^4 2^5 2^6 2^7 2^8 2^9 2¹⁰ )^ 1 / 10 & g= (2¹⁺²+3+ +10 )^ 1 / 10 & g=2^ 10(10+1) 2 1 10 g=2^ 5.5 & 2^5 g 2^6 32 g 64 aligned