Question

Using the example above as a guide, find all solutions to the equation - 2 cos(0) - 1 = - 1.5 on the domain 0 <o<2. [Note that this is an equation involving the cosine function, not the sine function.] Use commas to separate your answers if there is more than one solution. radians

Answer 1

-2coso -1=-115 on domain oso EET soln -acaso-1 =-1-5- s 2 caso 21.5-1 =S caso a os a) caso a 0.25 0.25 = positive smce, caso is pontive io well lies either in host or fourth quadrant 8 = cos10.25 ex ar-casto. 21 - 1.32 radian or 4.96 roelicure all soluhons are OD 1.32,4.96 rodicia