**How To Find The Value Of X In Angles Of A Circle References**. It shows you how to find the reference angle in degr. The sign depends on the quadrant of the original angle.

Finding your reference angle in radians is similar to identifying it in degrees. We will now repeat this process for a 60o reference angle. We first draw a right triangle that is based on a 60o reference angle, as shown below.

Table of Contents

### We Again Want To Find The Values Of X And Y.

Use your calculator to find trig values of other angles. For this example, we’ll use 28π/9 2. We look for the pi reference angle.

### Use The Definition Of Cosine.

If your angle is larger than 2π, take away the multiples of 2π until you get a value that’s smaller than the full angle. It shows you how to find the reference angle in degr. Sine (x) = opposite ÷ hypotenuse.

### We Know This Because The Angle Is The Reference Angle For.

Use the definition of secant. Draw 300 ° in standard position and find the reference angle. Because we know the signs of the functions in different quadrants, we can simplify the calculation of the value of a function at any angle to the value of the function at the reference angle for that angle.

### Value Of Tan 45 = 1.

Plug your values into the equation: Evaluate the value of 3sin 30 + tan 45. (, )x y where the terminal side of the 30o angle intersects the unit circle.

### To Find The Solution In The 2 Quadrant We Subtract Our Reference Angle From Pi, To Find Our Solution In The 3 Rd Quadrant We Add Our Reference Angle To Pi.

Value of sin 30 = 1/2. 135° has a reference angle of 45°. We can find the exact trig value of any angle in any quadrant if we apply the trig function to the reference angle.