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20 December, 19:26

Find the function value to four places: sec 75° 20'

a. 0.9674

b. 0.2532

c. 1.034

d. 3.950

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  1. 20 December, 19:34
    0
    sec x = 1 / (cos x)

    sec 75° 20' = 1 / (cos 75° 20') = 1 / (cos 75 1/3°) = 3.949522 ...

    Answer: d. 3.950
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