2005 Power of 2005*2 divided by (2005 power of 2005*2-2004 power of 2005*2)=?

2005 Power of 2005*2 divided by (2005 power of 2005*2-2004 power of 2005*2)=?

2005 Power of 2005*2 divided by (2005 power of 2005*2-2004 power of 2005*2)
=2005×2^2005÷[2005×2^2004(2-1)]
=2005×2^2005÷(2005×2^2004)
=2^2005÷2^2004
=2

What is the 2004 power of (0.5)+ the 2005 power of (-0.5)? If you know anything, please leave the process behind, I want the process.

(0.5)^2004+(-0.5)^2005
=(0.5)^2004+(-0.5)(-0.5)^2004
=(0.5)^2004+(-0.5)(0.5)^2004
=(1-0.5)(0.5)^2004
=0.5*(0.5)^2004
=(0.5)^2005