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Question Number 81532 by Power last updated on 13/Feb/20

Commented by mr W last updated on 13/Feb/20

all options are wrong!

$${all}\:{options}\:{are}\:{wrong}! \\ $$

Commented by mr W last updated on 13/Feb/20

whether in degree or in rad, as i have  said: ALL options are WRONG!  in degree: =∞  in radian: ≈−64.124668

$${whether}\:{in}\:{degree}\:{or}\:{in}\:{rad},\:{as}\:{i}\:{have} \\ $$$${said}:\:{ALL}\:{options}\:{are}\:{WRONG}! \\ $$$${in}\:{degree}:\:=\infty \\ $$$${in}\:{radian}:\:\approx−\mathrm{64}.\mathrm{124668} \\ $$

Commented by Power last updated on 13/Feb/20

radian

$$\mathrm{radian} \\ $$

Answered by mind is power last updated on 13/Feb/20

cos(90)=?   are this fraction well defind ?

$${cos}\left(\mathrm{90}\right)=?\:\:\:{are}\:{this}\:{fraction}\:{well}\:{defind}\:? \\ $$

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