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On its principal branch, tan⁻¹ takes values in which set?
A[0, π]
B(0, π)
C[-π/2, π/2]
D(-π/2, π/2)
Answer & Solution
Correct answer: D. (-π/2, π/2)
Tangent is undefined at ±π/2, so the open interval (-π/2, π/2) is used and the endpoints are left out.
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