Q .     `{x in R|log[(1.6)^(1-x^2)-(0.625)^(6(1+x))] in R}=`

EAMCET 2013
A

`(-oo,-1) U (7,oo)`

B

`(-1,5)`

C

`(1,7)`

D

`(-1,7)`

HINT

`(8/5)^(1-x^2)>(5/8)^(6(1+x))`
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