Question

answer of question which is mentioned above​

Answer 1

Answer:

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Answer 2

Answer:

{ 2^n + 2^( n - 1 ) } / { 2^( n + 1 ) - 2^n } = 3 / 2.

Step-by-step explanation:

= > { 2^n + 2^( n - 1 ) } / { 2^( n + 1 ) - 2^n }

= > [ 2^n + { 2^( n ).2^( - 1 ) } ] / [ { 2^( n ).2^( 1 ) } - 2^n ]

= > [ 2^n { 1 + 2^( - 1 ) } ] / [ 2^( n ) { 2^1 - 1 ]

= > ( 1 + 2^( - 1 ) } / ( 2 - 1 )

= > 1 + 2^( - 1 )

= > 1 + 1 / 2

= > ( 2 + 1 ) / 2

= > 3 / 2

Hence, { 2^n + 2^( n - 1 ) } / { 2^( n + 1 ) - 2^n } = 3 / 2 .