math help-precal?

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what is cos40 degrees and sin40 degrees in radian form?
how about cos140 degrees
sin140 degrees

2007-01-25 20:19:03 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

To convert from degrees to radians, multiply degrees times π/180. So 40º = 2π/9 radians.

2007-01-25 20:36:38 · answer #1 · answered by gp4rts 7 · 0⤊ 0⤋

40Â° = 2Ï/9 rad.
140Â° = 7Ï/9 rad.

2007-01-26 04:47:36 · answer #2 · answered by Helmut 7 · 0⤊ 0⤋