Given the equation a^2 +a^(-3)=4.125, which of the following options is the correct value of a? Choose the correct choice.
A) 2
B) 1
C) 0
D) 3
E) 5
Plugging in the various option into the equation to find out which is correct:   a^2 +a^(-3)= 4.125   2^2 +2^(-3) = 4.125 Ans. 2
<result>A</result>
Given the equation a^2 +a^(-3)=4.125, which of the following options is the correct value of a?