Given :
cos x = 1.7/2 .
Also, x is an acute angle.
To Find :
The value of angle x.
Solution :
cos x = 1.7/2
Applying cos inverse both the sides, we get :
![cos ^(-1) (cos\ x ) = cos^(-1) (1.7)/(2)\\\\x = cos^(-1) (1.7)/(2)](https://img.qammunity.org/2021/formulas/mathematics/high-school/bgmsv9iss4yztwhfjoznm2j5c3b0btt0tr.png)
Calculating the value of
from calculator, we get :
x = 31.79°
Therefore, the acute angle x is 31.79°.