How do you determine the exact values of the six trig function of the angle given (-4,10)?
2 Answers
Find 6 trig functions.
Explanation:
On the trig unit circle,
tan a = x/y = 4/10 = 0.40 -> a = 21.80 deg
x = a + 90 = 90 + 21.80 = 111.80 deg (Quadrant II)
sin x = sin 111.80 = 0.93
cos x = cos 111.80 = - 0.37
Assuming that the point
Explanation:
If point
In this case
the other functions are the reciprocals of these:
It is very important to memorize the definitions of the trigonometric functions. (Flash card are a great idea -- make some.)