Question 825867
Evaluate (a^4)^-3 when a=(2/3)^1/6
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(a^4)^-3 = a^-12
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So, a^-12 = [(2/3)^(1/6)]^-12 
= (2/3)^(1/6 * -12) 
= (2/3)^-2 
= (3/2)^2 
= 4/9
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Cheers,
Stan H.
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