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View question - Calculator error with inverse cosine?
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SOLVED: Use scientific calculator to determine the measure of the angle whose trigonometric ratio is given. Round to the nearest degree 7 sin-1 10. cos 0 = 0.25 2 I1. sin = 8- cos" 9 tan -1 (1) 12 col B = 12 B
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cos(1.57079632) is a bit of a torture test. : r/calculators
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Why are the cos-1 and sin-1 functions not working on my calculator? The answer always comes up as a math error and I don't know why. I'm definitely inputting everything right. -
