Consider the equation cos 483t 03 Find the smallest positiv

Consider the equation cos (4.83t) = -0.3. Find the smallest positive solution in radians and round answer to 4 decimal places. Your answer:

Solution

cos(4.83t)=-0.3

=>4.83t =cos^-1(-0.3)

=>4.83t =- cos^-1(0.3)

=>4.83t =- 1.2661036727795

=>4.83t =1.875488981

=>t =1.875488981_/4.83

=>t=0.3883