1. Trig. equations with graphs
Trigonometry

2. 1. 2. 3. 4. In each example find the x coordinate of the points
where the line and the trig. curve intersects.
Give your answers to the nearest degree in each case. 1. 1 -1
270°
90° x
sinx
y = 0.75 1 -1
270°
90° x
sinx
y = 0.3 2. 3. 1 -1
270°
90° x
sinx
y = -0.82 4. 1 -1
270°
90° x
sinx
y = -0.5

3. y = 0·75
sin-1 0·75
= 49°
49°
49°

4. sin-1 0·82
55°
55°
= 55°
y = -0·82

5. 5. 6. 7. 8. In each example find the x coordinate of the points
where the line and the trig. curve intersects.
Give your answers to the nearest degree in each case. 1 -1
270°
90° x
sinx
y = 0.225 5. 1 -1
270°
90° x
sinx
y = 6. -1
cosx x 1
180°
360°
y = 0.832 7. -1
cosx x 1
180°
360°
y = 0.65 8.

6. 9. 10. 11. 12. In each example find the x coordinate of the points
where the line and the trig. curve intersects.
Give your answers to the nearest degree in each case. 9. -1
cosx x 1
180°
360°
y = -0.67
10. -1
cosx x 1
180°
360°
y = -0.34
cosx -1 x 1
180°
360°
y = 0.18
11. -1 x 1
180°
360°
y =
cosx
12.

7. 13. 14. 15. 16. In each example find the x coordinate of the points
where the line and the trig. curve intersects.
Give your answers to the nearest degree in each case. 1 -1
270°
90° x
sinx
y =
13. -1 x 1
180°
360°
y = 0.582
cosx
14. 1 -1
270°
90° x
sinx
y = 0.818 -1
cosx x 1
180°
360°
y = 0.283
15.
16.