Solve by using the Superposition Theorem:
R1 = 10 Kê, R2 = 5 Kê, R3 = 20 Kê, R4 = 15 Kê, E1 = 30 V, and E2 = 45 V. Find the value of I3.
a. 0.54 mA
b. 1.91 mA
c. 0.28 mA
d. 0.82 mA
e. 1.36 mA
e. 1.36 mA
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Evaluate the integral.
A. 0 B. -9 C. 18 D. -18
Use the properties of the trigonometric functions to find the exact value of the expression. Do not use a calculator.tan 40° - 
A. 0 B. 40 C. 1 D. undefined
Solve the problem.If the resistance in an electrical circuit is held constant, the amount of current flowing through the circuit is directly proportional to the amount of voltage applied to the circuit. When 
are applied to a circuit, 
of current flow through the circuit. Find the new current if the voltage is increased to 
A. 280 mA B. 266 mA C. 168 mA D. 300 mA
Find the exact value of the expression without using a calculator or table.arccos 
A. 
B. - 
C. 
D. 