Solving Trig Equations Challenge

What is the x-coordinate on the unit circle known as?

• Cosine

• Tangent

• Sine

• Cotangent

If the sine of an angle is negative root 2 over 2, which angles could it be?

• 120 and 240 degrees

• 150 and 210 degrees

• 90 and 270 degrees

• 225 and 315 degrees

Where on the unit circle would you find a cosine value of negative root 3 over 2?

• Top half

• Right side

• Bottom half

• Left side

What angles correspond to a cosine value of negative root 3 over 2?

• 120 and 240 degrees

• 90 and 270 degrees

• 225 and 315 degrees

• 150 and 210 degrees

How do you isolate a trig function in an equation?

• None of the above

• Multiply or divide by coefficients

• Both of the above

• Add or subtract constants

What steps are involved in isolating a trigonometric function in an equation?

• Both A and B

• Using trigonometric identities

• Dividing or multiplying by the coefficient

• Adding or subtracting opposite terms

What is the cosine of theta when it is isolated and equals negative half?

• 120 and 240 degrees

• 225 and 315 degrees

• 150 and 210 degrees

• 90 and 270 degrees

For a sine value of root 3 over 2, which angles are possible?

• 60 and 120 degrees

• 225 and 315 degrees

• 90 and 270 degrees

• 150 and 210 degrees

What is the sine of theta when it equals negative one?

• 360 degrees

• 90 degrees

• 180 degrees

• 270 degrees

At what angles is the cosine of theta zero?

• 180 and 360 degrees

• 90 and 270 degrees

• 0 and 180 degrees

• 45 and 225 degrees