Find the exact value under the given conditions.sin ? = - 
, 
< ? < 2?; tan ? = - 
, 
< ? < ?Find cos (? + ?).
A. 
B. - 
C. 
D. - 
Answer: A
Mathematics
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In the circuit below, E = 20 V and VR = 9 V. Find VC and é.
a. é = -24.2ø, VC = 17.9 V
b. é = -26.4ø, VC = 44.5 V
c. é = -24.2ø, VC = 17.9 V
d. é = -63.3ø, VC = 17.9 V
e. é = -63.3ø, VC = 44.5 V
Mathematics
Solve the equation.
= 5
A. 
B. 
C. 
D. 
Mathematics
If s denotes the length of the arc of a circle of radius r subtended by a central angle ?, find the missing quantity.r = 
feet, s = 7 feet, ? = ?
A. 
°
B. 
radians
C. 21 radians
D. 21°
Mathematics
Use Euler's method to approximate the indicated function value to three decimal places using 
= x2 + y2; y(0) = 1; find y(0.4)
A. 1.689 B. 1.573 C. 1.569 D. 1.462
Mathematics