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Ex 2.1, 9 - Find principal value of cos-1 (-1/root 2) - Ex 2.1
Why is cos(0) = 1? Why is cos(0) = 1? How do you solve and find the value of cos^-1(1/2)?
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Cos solution general ex 3x 2x find slide19Evaluate y = cos^(-1)(-1/2) Cos degrees 60 180 sin value 90 cosine trigonometry degree circle unit right find derivation triangle functions values sine trigonometric.
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