Use a calculator to evaluate sec 85°. a:-1.016. b:-5.679. c:1.004. d:11.474

1 answer:

7 0

The correct answer to this question is this one: "D. 11.474"

your calculator probably doesn't do "secant". But sec is 1/cos
so do cos(85) (in degree mode, not radian mode) then "invert it": 1 / ANS or x^-1 if you have that key

or type
1/cos(85 degrees)= 11.4737

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