SOLUTION: Find the cosine (cos) of the angle in standard position determined by the point (-7, -3)

Question 1158448: Find the cosine (cos) of the angle in standard position determined by the point (-7, -3)
Answer by ikleyn(52835) (Show Source): You can put this solution on YOUR website!
.


The point is in QIII, where cosine is NEGATIVE.



cos(a) is the ratio of the adjacent leg (which is -7 in this case) to the hypotenuse length;

    the sign of the ratio should be selected as a " - " (minus).



The hypotenuse length is   =  = .



Hence, the answer is  cos(a) = - .

Solved and explained.

RELATED QUESTIONS
find the cosine of the angle formed with the coordinates (-6, 7) located in standard... (answered by Edwin McCravy)

Draw an angle of 124.3° In standard position. Find the sine, cosine, tangent of this... (answered by Alan3354)

For a standard-position angle determined by the point(3, -4), what are the values of the... (answered by solver91311)

What is the six values of trig functions for the angle in standard position determined by (answered by Alan3354)

Find the values of the six trigonometric functions for the angle in standard position... (answered by Edwin McCravy,MathLover1)

For a standard position angle determined by the point (x,y) what are the values of the... (answered by ikleyn)

Find the values of the six trigonometric functions for the angle in standard position... (answered by Edwin McCravy)

For a standard-position angle determined by the point (x, y), what are the values of the... (answered by lwsshak3)

if the point (-2,-7) is on the terminal arm of N, an angle in standard position, what is... (answered by lwsshak3)