Solve 2 arctan(x) = π/3:
Ax = 0
Bx = tan(π/6) = 1/sqrt(3)
Cx = 1
Dx = sqrt(3)
Answer & Solution
Correct answer: B. x = tan(π/6) = 1/sqrt(3)
arctan(x) = π/6 → x = tan(π/6) = 1/√3 ≈ 0.577.
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