Question

Both have to do simplify.
please give me the answer​

Answer 1

Answer:

3 ^-2 + 3 ^ -1 + 3 ^0 + 3 ^ 1 + 3 ^ 2

=> 1 / 3^2 + 1 / 3 + 1 + 3 + 9

=> 1 / 9 + 1 / 3 + 13

On taking L.C.M ( Here , 9 ) : -

=> 1 + 3 + 117

________

9

=> 121 / 9

=> 13 . 4

&

( 6 ^ -2 + 6 ^ - 3 ) ( 6^0 - 6 ^ -1 )

=> ( 1 / 6^2 + 1 / 6^3 ) ( 1 - 1 / 6 )

=> ( 1 / 36 + 1 / 216 ) ( 1 - 1 / 6 )

ON TAKING L.C.M : -

=> ( 6 + 1 ) ( 6 - 1 )

______ _______

216 6

=> 7 / 216 × 5 / 6

=> 35 / 1296

=> 37