Carol H. answered • 09/11/17

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In radian mode, cos

^{-1}(1/2) = 1.047In degree mode, cos

^{-1}(1/2) = 60º60º = π/3

Diana S.

asked • 09/11/17I have question cosx=1:2

Im in radian mode which is where im supposed to be i know for sure, but i have a problem.

Instead of getting an answer like my classmates- pie:3

I get the sulotion of pie:3- 1.047

My teacher says we all have to be in radian mode, and i know that im on radian mode, and everyone else is too. but why do i get answers like this? Im not allowed to use answers like this please help me i have test in a fyu days.

My question is: how do i make my answers appear like pie:3 and not 1.047??

Thank you!

(I have bad spelling because i dont live in english speaking country im sorry)

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Carol H. answered • 09/11/17

Tutor

4.9
(285)
Experienced Mathematics Tutor w/ Master's Degree in Math

In radian mode, cos^{-1}(1/2) = 1.047

In degree mode, cos^{-1}(1/2) = 60º

60º = π/3

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