Question

Use an identity to solve the following equation on the interval [0,21). sin 2x = -12 cos x Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. X= (Use integers or fractions for any numbers in the expression. Type an exact answer, using a as needed. Use a comma to separate answers as needed.) OB. There is no solution.

Answer 1

Solution't sin(21) = 12 con on [0,25) By wing sin(ow)= dsinn costo sin (2x) = -f2 con 25inn. Con & 2 cosao d2.com [.12 sinn +1] 0 12 sinnt 1=0 Coco Sh > Sinn= -1 sinn sin (377) 2-T 2 a=50 Cinco 6(n) = C) sina=-1 1933 2 Sin(n)= sin a=75 Houce solution are x SAT, Ang