Question
1. (12g^4)^-1 (work check)
12g^-4 = 1/(12g^4)
2. (2y^4)^-3 (need help)
12g^-4 = 1/(12g^4)
2. (2y^4)^-3 (need help)
Answers
Steve
#1 ok
#2 Hmmm. If you got 1, don't see why 2 is any problem
(2y^4)^-3 = 1/(2y^4)^3 = 1/(8y^12)
#2 Hmmm. If you got 1, don't see why 2 is any problem
(2y^4)^-3 = 1/(2y^4)^3 = 1/(8y^12)
Anonymous
How did you get (8y^12)?
Steve
(2y^4)^3 = (2)^3 * (y^4)^3 = 8 y^12
Just as (2*5)^2 = 2^2 * 5^2 = 4*25 = 100
Just as (2*5)^2 = 2^2 * 5^2 = 4*25 = 100
Anonymous
Thanks, I get it now. One more...
(r^2 s)^5
(r^2 s)^5