What is sin15o hint it may help to write this as sin45o -

Question

Precalc Review Worksheet - Math 1A, section 106

1. What is 0 · 1? What is 0 + 1? What is 1 + 2? What is 12 · 12?

2. Simplify: 1 + 2 - 3 · 4/5 + 4/3 · 2 - 1

3. Simplify: -(3/√2)⁴

4. Simplify: 2 · log₂(x + y) + log₂(x - y). What is 2^x · 2^y?

5. Simplify: log₂(3) · log₃(2)?

6. Expand: (x + y)⁴.

7. Expand: (x + y + z)².

8. Plot the graph of the equation 2y = x² - 2x - 1.

9. What is 70^o in radians? What is π/3 radians in degrees?

10. Compute sin(-π/4) + cos(-π/4) + tan(-π/4).

11. Compute sin²(70^o) + cos²(70^o).

12. What is sin(15^o)? Hint: It may help to write this as sin(45^o - 30^o).

13. Find the coordinates of the points of intersection of the line x + y = 1 with the circle x² + y² = 2.