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Careful: arc sin(sin(5π/4)) ≠ ...
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2 ways: sq root derivative 1/(√√(1/√x))
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trig Write each expression as an equivalent algebraic expression involving only x.
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UT Austin: trig integral ∫(1/x^2) sin(1/x) cos(1/x) dx
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Review Add Math: Show a^m a^n = a^(m+n) where m & n are any 2 positive integers
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"baby" fact: exp e^(ix)
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