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CBSE Class 11-science Answered

Prove That:

2^n<3^n
Asked by jgjaigupta1998 | 15 May, 2014, 01:07: PM
answered-by-expert Expert Answer
G i v e n : space space space space space space space space space space space space space 2 to the power of n space less than space 3 to the power of n n equals 1 space 2 space less than space 3 space space space t r u e L e t s space a s s u m e space t h e space g i v e n space i n e q u a l i t y space i s space t r u e space f o r space n equals k comma space t h e n space space space space 2 to the power of k space less than space 3 to the power of k space space space space space... space left parenthesis i right parenthesis N o w comma space space f o r space n equals k plus 1 space 2 to the power of k plus 1 end exponent space comma space space space 3 to the power of k plus 1 end exponent space rightwards double arrow 2.2 to the power of k space comma space 3.3 to the power of k rightwards double arrow 2.2 to the power of k space end exponent less than space space 3.3 to the power of k space space space space space w h i c h space i s space t r u e space f o r space n space equals space k plus 1 T h e r e f o r e comma space t h e space g i v e n space i n e q u a l i t y space h o l d s space t r u e.
Answered by Avinash Soni | 15 May, 2014, 01:47: PM

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