Trigonometry 7.5 Solve for Principal Solution

π/2

Solve for x and give the principal solution(s) Give EXACT value(s): sinx = 1 + cos²x

2.57

Evaluate arccos(-.843). Give answer in radians

-.39

Evaluate arcsin(-.379). Give answer in radians

.19

Give the principal solution in radians: cscx = 5.23

1.73

Give the principal solution in radians: secx = -6.23

1.14

Give the principal solution in radians: tanx = 2.156

1.30

Give the principal solution in radians: tanx = 3.564

2π/3

Solve for x and give the principal solution(s) Give EXACT value(s): 2cosx + 1= 0

π/3

Solve for x and give the principal solution(s) Give EXACT value(s): 2cos²x + 3cosx - 2 = 0

π/6

Solve for x and give the principal solution(s) Give EXACT value(s): 2cos²x = 3sinx

π/6, π/2

Solve for x and give the principal solution(s) Give EXACT value(s): sinxcosx -.5cosx = 0

π/2, π/3

Solve for x and give the principal solution(s). Give EXACT value(s): cos²x - cosx + 1 = sin²x