Question

If a=1/ (7 − 4√3) , find the value of a2 + 1/a2.

Answer 1

Answer:

Hope it will help you

Answer 2

Answer:

2a + 1 / 2a

(Put the value of a )

{ 2 x [ 1 / ( 7 - 4√3 ) ] + 1 } / { 2 x [ 1 / ( 7 - 4√3 ) } }

[ 2 / ( 7 - 4√3 ) + 1 ] / [ 2 / ( 7 - 4√3 ) ]

[ ( 2 + 7 - 4√3 ) / ( 7 - 4√3 ) ] / [ ( 2 ) / ( 7 - 4√3 ) ]

[ ( 9 - 4√3 ) / ( 7 - 4√3 ) ] / [ ( 2 ) / ( 7 - 4√3 ) ]

( 9 - 4√3 ) / 2 OR √3 ( 3√3 - 4 ) / 2 ...