If , which of the following is the value of ?
(A) 0
(B) 1
(C) 2
(D) 3
Thanks!
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If , which of the following is the value of ?
(A) 0
(B) 1
(C) 2
(D) 3
Thanks!
First solve the quadratic equation
and then plug in this value to the expression
Therefore the correct answer is (A).