Gon functions

Decide which of the numbers (values ​​of trigonometric functions) are positive and which are negative (or zero). Positive mark +1 and negative -1.

Result

sin (-33°):  -1
sin (889°):  1
sin (-432°):  -1
cos (919°):  -1
cos (-16°):  1
cos (-38°):  1
cos (222°):  -1
cos (546°):  -1
sin (-403°):  -1
sin (-9°):  -1

Solution:

sin (-33°) = -0.5446 < 0; -33 ° ... Q4; sin Q4 < 0
sin (889°) = 0.1908 > 0; 889 ° ... Q2; sin Q2 > 0
sin (-432°) = -0.9511 < 0; -432 ° ... Q4; sin Q4 < 0
cos (919°) = -0.9455 < 0; 919 ° ... Q3; cos Q3 < 0
cos (-16°) = 0.9613 > 0; -16 ° ... Q4; cos Q4 > 0
cos (-38°) = 0.788 > 0; -38 ° ... Q4; cos Q4 > 0
cos (222°) = -0.7431 < 0; 222 ° ... Q3; cos Q3 < 0
cos (546°) = -0.9945 < 0; 546 ° ... Q3; cos Q3 < 0
sin (-403°) = -0.682 < 0; -403 ° ... Q4; sin Q4 < 0
sin (-9°) = -0.1564 < 0; -9 ° ... Q4; sin Q4 < 0

Try another example

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:

Be the first to comment!

Next similar examples:

1. Obtuse angle
   The line OH is the height of the triangle DOM, line MN is the bisector of angle DMO. obtuse angle between the lines MN and OH is four times larger than the angle DMN. What size is the angle DMO? (see attached image)
2. The ball
   The ball was discounted by 10 percent and then again by 30 percent. How many percent of the original price is now?
3. Two numbers
   We have two numbers. Their sum is 140. One-fifth of the first number is equal to half the second number. Determine those unknown numbers.
4. Flowerbed
   Flowerbed has the shape of an isosceles obtuse triangle. Arm has a size 5.5 meters and an angle opposite to the base size is 94°. What is the distance from the base to opposite vertex?
5. 30-60-90
   The longer leg of a 30°-60°-90° triangle measures 5. What is the length of the shorter leg?
6. Internal and external angles
   Calculate the remaining internal and external angles of a triangle, if you know the internal angle γ (gamma) = 34 degrees and one external angle is 78 degrees and 40 '. Determine what kind of triangle it is from the size of its angles.
7. Angles
   The triangle is one outer angle 56°30' and one internal angle 46°24'. Calculate the other internal angles of a triangle.
8. Triangle angles
   In a triangle ABC the interior angle at the vertex C is twice as the internal angle at the point A. Outer angle at the point B measured 117 degrees. How big is the outer angle at the vertex A?
9. Alfa, beta, gama
   In the triangle ABC is the size of the internal angle BETA 8 degrees larger than the size of the internal angle ALFA and size of the internal angle GAMA is twice the size of the angle BETA. Determine the size of the interior angles of the triangle ABC.
10. Triangle SSA
    Construct a triangle ABC if |AB| = 5cm v_a = 3cm, CAB = 50 °. It is to create the analysis and construction steps.
11. Center traverse
    It is true that the middle traverse bisects the triangle?
12. Radians compare
    What is greater angle? -0.7 radians or -0.7π radians?
13. Slope
    Find the slope of the line: x=t and y=1+t.
14. Reference angle
    Find the reference angle of each angle:
15. Trees
    Along the road were planted 250 trees of two types. Cherry for 60 CZK apiece and apple 50 CZK apiece. The entire plantation cost 12,800 CZK. How many was cherries and apples?
16. Theatro
    Theatrical performance was attended by 480 spectators. Women were in the audience 40 more than men and children 60 less than half of adult spectators. How many men, women and children attended a theater performance?
17. Equations
    Solve following system of equations: 6(x+7)+4(y-5)=12 2(x+y)-3(-2x+4y)=-44