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10 cards from this deck
Functions that reverse trigonometric ratios to find angles.
The domain of arcsin is [-1, 1].
The range of arccos is [0, π].
The range of arctan is [-π/2, π/2].
d/dx[arcsin(x)] = 1/√(1-x²).
d/dx[arccos(x)] = -1/√(1-x²).
d/dx[arctan(x)] = 1/(1+x²).
dy/dx = 2/√(1-4x²).
They help solve integrals and differential equations.
∫1/(1+x²) dx = arctan(x) + C.
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