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Amour
Mathematics
11 July, 20:35
If sin x = 0.3, what is the value of cos x
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Camden Richard
11 July, 20:57
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Answer: 0.95
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Savannah Coffey
11 July, 21:02
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Sin² (x) + cos² (x) = 1
(0.3) ²+cos² (x) = 1
cos² (x) = 1 - (0.3) ²
cos² (x) = 1 - 9/100
cos² (x) = 91/100
cos (x) = ± (91/100)
cos (x) = ± 0.91
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