Question

If x=0.9, then the value of {1-[1-(1-x3)-1]-1}-1/3 is
Options:
A] 0.9 B] 0.3 C] 0.6 D] 0.0081

Answer 1

{1-[1-(1-x^3)-1]-1}-1/3
= {1-[-(1-x^3)]-1}-1/3
= {-[-(1-x^3)]}-1/3
= { 1 - .9^3} - 1/3
= -.062333...

none of your choices

see
https://www.google.ca/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=(1-(1-(1-(.9)%5E3)-1)-1)-1%2F3

Answer 2

THANK YOU