7-9 Precalculus. Please put the answer in proper format.

The following equation involves a trigonometric equation in quadratic form. Solve the equation on the interval [0,2x). 4 cos *x - 3 =0 What are the solutions in the interval [0,2x)? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. x= (Type your answer in radians. Use integers or fractions for any numbers in the expression. Type an exact answer, using it as needed. Use a comma to separate answers as needed.) O B. There is no solution.Solve the following equation on the interval [0,2x). cos x - 2 sin x cos x =0 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. x= (Type an exact answer, using it as needed. Use a comma to separate answers as needed. Type your answer in radians. Use integers or fractions for any numbers in the expression. O B. There is no solution.Use an identityto solve the following equation on the interval [0.21:1 25in2x cosx 1 =0 Select the correct choice below and. if necessary. ll in the answer box to complete your choice. ".A. X: (Type your answer in radians. Use integers or fractions for any.r numbers in the expression. Type an exact answer. using 1: as needed. Use a comma to separate answers as needed.) C:- B. There is no solution