Determine all of the exact solutions parts a and c use unit

Determine all of the exact solutions (parts a and c use unit circle chart) and for part b round to two decimal places in the listed interval for the following equations (be sure to show/discuss your work and include the proper justification):

Solution

a. 3 tan 2x=-3

tan 2x=-1

2x=tan^-1-1= 3pi/4, 7pi/4, 11pi/4, 15pi/4

x= 3pi/8, 7pi/8, 11pi/8,15pi/8

b. Some information is missing

c. 2sinx + sqrt3=0

sin x=-sqrt3/2

x=sin^-1(-sqrt3/2)= 4pi/3, 5pi/3