what does cos(1.2) equal (1 Viewer)

[RANK 1]

my calculator says cos(1.2) = 0.999780683 but wolfram alpha and the past paper solutions say that it equals 0.362358...

i've tried it with 3 calculators which all give 0.999780683, 4 if u include the windows calculator

 

[Shadowdude]

Did you use radians or degrees?

 

[RANK 1]

oh......... nvm

 

[RANK 1]

does cos1.2 in radian mode on the calculator means cos(1.2 x 180) in normal degree mode right

 

[Qwertyuioplm]

does cos1.2 in radian mode on the calculator means cos(1.2 x 180) in normal degree mode right

No, degrees = radians * 180 / pi

 

[funnytomato]

does cos1.2 in radian mode on the calculator means cos(1.2 x 180) in normal degree mode right

this may help u to remember it

2pi radians = 360 degrees

so 1 radian = 360/2pi degrees

http://www.wolframalpha.com/input/?i=cos(1.2*180/pi+degrees)

 

[Omnipotence]

Did you use radians or degrees?

hahaha this.