Question

hello guys
anseer this wh
ILLUSTRATION 2.6
Find the approximate values of (iii) cos 1º.

i cant understand how they got 1 as answer......​

Answer 1

If ' l ' is in radians , Then , we know that , 11 radian = 180° ; 1 radian = ( 180° / T Hence , cos1 = cos ( 180° / Tt ) cos1 = cos ( 57 . 2957795 ) ; cos1 = 0 . 5403023059

Answer 2

Answer:

180°=pi rad;

1°=(pi/180) rad.;

NOW,

cos1° = cos(pi/180°);

cos1°= 0.9998476952;

Result: cos1°= 0.9998476952

Step-by-step explanation:

Hope you get the answer