math question....if x= 5/3 then x^-2=....?

2009-08-25 4:26 pm

回答 (3)

2009-08-25 4:32 pm
✔ 最佳答案
(5/3)^-2=(3/5)^2=9/25
God bless you.
2009-08-26 12:01 am
x^-2 (x = 5/3)
= (5/3)^-2
= 1/[(5/3)^2]
= 1(3/5)^2
= (3^2)/(5^2)
= 9/25
2009-08-25 11:39 pm
If x=5/3
Find: x^-2 = ?

simplify equation
x^-2 = 1/x^2

plug in x
1 / (5/3)^2

simplify equation
(3/5)^2

solution
9/25 = 0.36


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