A point on the terminal side of an angle ? is given. Find the exact value of the indicated trigonometric function of ?.(4, -3)Find cos ?.
A. - 
B. 
C. 
D. - 
Answer: C
Mathematics
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Solve the problem.It can be shown that 
= 0 for c > 0. Find the smallest value of N such that 
for all 
if 
and 
A. 31 B. 28 C. 25 D. 35
Mathematics
The magnitudes src="https://sciemce.com/media/4/ppg__hgh0505191830__f1q120g6.jpg" alt="" style="vertical-align: -4.0px;" />
A. 19.1
B. 20.7
C. -36.2
D. 17.4
, 
, and the angle ? between the vectors v and w are given. Round the requested magnitude or angle to the nearest tenth.
= 14, 
= 13, ? = 80°
Find
Mathematics
Find the exact value of the expression.tan-1 0
A. 0
B. ?
C. 
D. 2?
Mathematics
Find the eccentricity of the hyperbola.Find the eccentricity of a hyperbola centered at the origin having a focus of 
and corresponding directrix 
A. 
B. 
C. 
D. 
Mathematics