Solving Trig Equations with Identities

• cot Θ

• cos Θ

• tan^-1 Θ

• csc Θ

Solve for theta.

• A

• B

• C

• D

Solve for theta.

• A

• B

• C

• D

Solve for theta.

• A

• B

• C

• D

Solve for theta.

• A

• B

• C

• D

Solve for theta.

• A

• B

• C

• D

Solve for theta.

• A

• B

• C

• D

Solve: 4sinθ + 1 = 3 State all solutions in the interval [0, 2π)

• π/ 6, 7π/6

• π/6, 5π/ 6

• 5π/6, 7π/6

• 7π/6, 11π/6

Solve: 2cscθ + 2 = 0 State all solutions in the interval [0, 2π)

• π/2, 3π/2

• π/2

• 3π /2

• π

Organize this equation so it can be factored:

1−sin²x + sinx = 1

• move all to the right: 0 = sin²x − sinx

• cancel the ones and cancel a sinx

• replace sin²x with 1 − cos²x

• use this: 0 = sin²x − sinx + 2