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Between 0 and 2π, tan x = 1 is true for which pair?
Aπ/4 and 3π/4
Bπ/4 and 7π/4
C3π/4 and 7π/4
Dπ/4 and 5π/4
Answer & Solution
Correct answer: D. π/4 and 5π/4
Tangent is positive in the first and third quadrants, so x = π/4 and π + π/4 = 5π/4.
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