Trigonometry

2. (2sin20°+cos70°)/(2sin20°-cos70°)
3. The sum of the angles is equal to 90°
8. The ratio of two sides in a right triangle that depends on the size of the acute angle
10. The relationship between cosine alpha and sine alpha
13. The ratio between the opposite leg and the hypotenuse of an acute angle in a right triangle
14. The cosine alpha value of p/3(pi)
15. The relationship between the adjacent and the opposite leg of
16. in a right triangle
17. product of tangent alpha and cotangent alpha

1. Basic equations that apply to any acute angle a( sinat cos*a=1, tgaxctga=1)
4. What will sine alpha and cosine beta be if the angles are compliments, ie. a+b=90° (alpha+beta)
5. A mathematician who gave the theorem about the relationship between the 2 legs and the hypotenuse of a right triangle.
6. Solve the j problem: cos60° (1-sin30°) +sin30°/(1-
7. Which represents f. cosine of sine, and cotangent of tangent
8. The ratio of the opposite and hypotenuse of an acute angle in a right triangle
9. The long side of a right triangle
10. The ratio of the inclined leg and the hypotenuse of an acute
11. angle in a right triangle
12. The value of ctga45°