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OpenStudy (anonymous):
Use a calculator to find the approximate value of cos-1(0.78).
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OpenStudy (anonymous):
.6761305096
OpenStudy (anonymous):
102.52° 51.26° 37.95° 38.74°
OpenStudy (anonymous):
calc gave you the answer in radians. this is equal to 38.74 degrees cos^(-1) should be above you cos button. most calculators: press 2nd F then press cos to use the cos^(-1) function
OpenStudy (anonymous):
38.75
OpenStudy (anonymous):
38.74 *
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