Find 
if 
.
?
A. 
B. 
C. 
D. 
E. 
Answer: E
Mathematics
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Solve the equation.4m - 1 + 7(m + 1) = 4m - 1
A. 
B. 
C. 
D. 
Mathematics
Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as an angle in [0,360°].
A. 14; 150° B. 28; 150° C. 28; 30° D. 14; 330°
Mathematics
Write the complex number in trigonometric form r(cos ? + i sin ?), with ? in the interval [0°, 360°).4i
A. 4(cos 90° + i sin 90°) B. 4(cos 0° + i sin 0°) C. 4(cos 270° + i sin 270°) D. 4(cos 180° + i sin 180°)
Mathematics
Find the inverse of the function.f(x) = e7x
A. f-1(x) = 
ln(x)
B. f-1(x) = 7 ln(x)
C. f-1(x) = -7 ln(x)
D. f-1(x) = ln 
Mathematics