SOLUTION: Find the exact value of cos theta if the terminal side of theta in standard position contains the point (6,-8) a. -4/5 b. 3/5 c. 4/5 d. -3/5

Algebra.Com
Question 340962: Find the exact value of cos theta if the terminal side of theta in standard position contains the point (6,-8)
a. -4/5
b. 3/5
c. 4/5
d. -3/5

Answer by jrfrunner(365)   (Show Source): You can put this solution on YOUR website!
given point (6,-8) means x=6, y=-8
--
cos(theta)=x/r where


RELATED QUESTIONS

Find the exact values of the six trigonometric functions of theta if the terminal side of (answered by stanbon)
find the exact value of sec theta for angle theta in standard position if the point... (answered by lwsshak3)
Let (5, -2) be a point on the terminal side of an angle (theta) in standard position.... (answered by stanbon)
Find the exact values of the six trigonometric functions of theta if the terminal side of (answered by Fombitz)
Suppose that theta is an angle in standard position whose terminal side intersects the... (answered by lwsshak3)
suppose theta is an angle in standard position whose terminal side lies in quadrant IV.... (answered by lwsshak3)
Suppose that theta is an angle in standard position whose terminal side passes through... (answered by robertb)
the question is find the exact value of sin theta if cos theta=5/7 and theta terminates... (answered by jsmallt9)
if point -5, 12 lies on the terminal side of theta in standard position then sin theta... (answered by Fombitz)