A vector v has initial point P and terminal point Q. Find the magnitude of 
.P(-13, -3), Q(14, 7)
A. 
B. 829
C. 37
D. 
Answer: D
Mathematics
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Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 29,400,000,000,000 B. 600,000 C. 29,400,000 D. 600,000,000,000
Mathematics
Find the exact value of the expression.tan 345°
A. 
B. 2 + 
C. -2 - 
D. 
Mathematics
Express the function as a trigonometric function of x.sin 4x
A. 1 - 8 sin2x cos2x B. 4 sin x cos3x - 4 sin3x cos x C. cos3x - 3 sin2x cos x D. 3 sin x - 4 sin3x
Mathematics
Use the given information given to find the exact value of the trigonometric function.cos ? = - 
, sin ? > 0Find cos 
.
A. 
B. 
C. - 
D. - 
Mathematics